Certification Problem

Input (COPS 1005)

We consider the TRS containing the following rules:

The underlying signature is as follows:

Property / Task

Answer / Result

Proof (by csi @ CoCo 2022)

1 Redundant Rules Transformation

To prove that the TRS is (non-)confluent, we show (non-)confluence of the following modified system:

All redundant rules that were added or removed can be simulated in 1 steps .

1.1 Redundant Rules Transformation

To prove that the TRS is (non-)confluent, we show (non-)confluence of the following modified system:

All redundant rules that were added or removed can be simulated in 6 steps .

1.1.1 Decreasing Diagrams

1.1.1.2 Rule Labeling

• b(a(x))

  →

  c(a(x))

  (8)

  ↦ 1

• a(c(x))

  →

  c(b(x))

  (7)

  ↦ 4

• c(a(x))

  →

  a(b(x))

  (6)

  ↦ 1

• b(b(x))

  →

  a(b(x))

  (4)

  ↦ 5

• a(b(x))

  →

  a(a(x))

  (3)

  ↦ 0

• c(b(x))

  →

  a(c(x))

  (2)

  ↦ 3

• b(c(x))

  →

  a(a(x))

  (1)

  ↦ 0

• b(a(a(x113)))

  →

  a(a(a(x113)))

  (9)

  ↦ 0

• b(a(c(x112)))

  →

  a(a(b(x112)))

  (10)

  ↦ 2

• c(a(a(x110)))

  →

  a(a(a(x110)))

  (11)

  ↦ 0

• b(a(b(x106)))

  →

  a(b(b(x106)))

  (12)

  ↦ 2

• b(a(b(x105)))

  →

  a(a(a(x105)))

  (13)

  ↦ 0

• c(c(b(x103)))

  →

  a(b(c(x103)))

  (14)

  ↦ 3

• b(c(b(x102)))

  →

  a(a(a(x102)))

  (15)

  ↦ 3

• b(c(b(x102)))

  →

  c(a(c(x102)))

  (16)

  ↦ 3

• a(c(a(x100)))

  →

  a(a(a(x100)))

  (17)

  ↦ 0

• a(c(c(x115)))

  →

  c(a(a(x115)))

  (18)

  ↦ 1

• a(a(c(x114)))

  →

  a(a(a(x114)))

  (19)

  ↦ 0

• a(b(b(x110)))

  →

  a(a(a(x110)))

  (20)

  ↦ 0

• a(c(b(x108)))

  →

  c(a(b(x108)))

  (21)

  ↦ 5

• c(b(a(x104)))

  →

  a(a(b(x104)))

  (22)

  ↦ 1

• c(a(c(x102)))

  →

  a(a(a(x102)))

  (23)

  ↦ 0

• a(c(a(x101)))

  →

  c(c(a(x101)))

  (24)

  ↦ 2

• The critical peak s = b(c(a(x1542)))←→_ε a(b(a(x1542))) = t can be joined as follows.
  s ↔ a(a(a(x1542))) ↔ t
• The critical peak s = a(c(a(x1543)))←→_ε a(a(a(x1543))) = t can be joined as follows.
  s ↔ t
• The critical peak s = c(c(a(x1544)))←→_ε a(c(a(x1544))) = t can be joined as follows.
  s ↔ c(c(a(x1544))) ↔ t
• The critical peak s = c(a(a(x113)))←→_ε a(a(a(x113))) = t can be joined as follows.
  s ↔ t
• The critical peak s = c(a(c(x112)))←→_ε a(a(b(x112))) = t can be joined as follows.
  s ↔ a(a(a(x112))) ↔ t
• The critical peak s = c(a(b(x106)))←→_ε a(b(b(x106))) = t can be joined as follows.
  s ↔ t
• The critical peak s = b(a(c(a(x1548))))←→_ε a(b(b(a(x1548)))) = t can be joined as follows.
  s ↔ a(a(b(a(x1548)))) ↔ t
• The critical peak s = c(a(b(x105)))←→_ε a(a(a(x105))) = t can be joined as follows.
  s ↔ a(b(b(x105))) ↔ t
• The critical peak s = c(a(b(x105)))←→_ε a(a(a(x105))) = t can be joined as follows.
  s ↔ c(a(a(x105))) ↔ t
• The critical peak s = b(a(c(a(x1550))))←→_ε a(a(a(a(x1550)))) = t can be joined as follows.
  s ↔ c(a(c(a(x1550)))) ↔ t
• The critical peak s = b(a(c(a(x1550))))←→_ε a(a(a(a(x1550)))) = t can be joined as follows.
  s ↔ b(c(b(a(x1550)))) ↔ t
• The critical peak s = b(a(c(a(x1550))))←→_ε a(a(a(a(x1550)))) = t can be joined as follows.
  s ↔ a(a(b(a(x1550)))) ↔ t
• The critical peak s = b(a(c(a(x1550))))←→_ε a(a(a(a(x1550)))) = t can be joined as follows.
  s ↔ b(a(a(a(x1550)))) ↔ t
• The critical peak s = c(c(c(a(x1551))))←→_ε a(b(c(a(x1551)))) = t can be joined as follows.
  s ↔ c(c(a(b(x1551)))) ↔ a(c(a(b(x1551)))) ↔ a(b(a(b(x1551)))) ↔ t
• The critical peak s = c(c(c(a(x1551))))←→_ε a(b(c(a(x1551)))) = t can be joined as follows.
  s ↔ c(c(a(b(x1551)))) ↔ c(a(b(b(x1551)))) ↔ c(a(a(a(x1551)))) ↔ a(c(c(a(x1551)))) ↔ a(a(c(a(x1551)))) ↔ t
• The critical peak s = c(c(c(a(x1551))))←→_ε a(b(c(a(x1551)))) = t can be joined as follows.
  s ↔ c(c(a(b(x1551)))) ↔ c(c(a(a(x1551)))) ↔ c(a(a(a(x1551)))) ↔ a(c(c(a(x1551)))) ↔ a(a(c(a(x1551)))) ↔ t
• The critical peak s = c(c(c(a(x1551))))←→_ε a(b(c(a(x1551)))) = t can be joined as follows.
  s ↔ c(c(a(b(x1551)))) ↔ c(c(a(a(x1551)))) ↔ c(a(b(a(x1551)))) ↔ a(c(b(a(x1551)))) ↔ a(a(c(a(x1551)))) ↔ t
• The critical peak s = b(c(c(a(x1552))))←→_ε a(a(a(a(x1552)))) = t can be joined as follows.
  s ↔ a(a(c(a(x1552)))) ↔ t
• The critical peak s = b(c(c(a(x1553))))←→_ε c(a(c(a(x1553)))) = t can be joined as follows.
  s ↔ a(a(c(a(x1553)))) ↔ a(b(c(a(x1553)))) ↔ t
• The critical peak s = b(c(c(a(x1553))))←→_ε c(a(c(a(x1553)))) = t can be joined as follows.
  s ↔ b(c(a(b(x1553)))) ↔ a(a(a(b(x1553)))) ↔ c(a(a(b(x1553)))) ↔ t
• The critical peak s = b(c(c(a(x1553))))←→_ε c(a(c(a(x1553)))) = t can be joined as follows.
  s ↔ a(a(c(a(x1553)))) ↔ a(a(a(b(x1553)))) ↔ c(a(a(b(x1553)))) ↔ t
• The critical peak s = b(c(c(a(x1553))))←→_ε c(a(c(a(x1553)))) = t can be joined as follows.
  s ↔ a(a(c(a(x1553)))) ↔ a(a(a(a(x1553)))) ↔ t
• The critical peak s = b(c(c(a(x1553))))←→_ε c(a(c(a(x1553)))) = t can be joined as follows.
  s ↔ a(a(c(a(x1553)))) ↔ a(a(a(a(x1553)))) ↔ a(b(c(a(x1553)))) ↔ t
• The critical peak s = b(c(c(a(x1553))))←→_ε c(a(c(a(x1553)))) = t can be joined as follows.
  s ↔ a(a(c(a(x1553)))) ↔ a(a(a(a(x1553)))) ↔ c(a(a(a(x1553)))) ↔ t
• The critical peak s = a(b(c(a(x1554))))←→_ε a(a(a(a(x1554)))) = t can be joined as follows.
  s ↔ t
• The critical peak s = a(c(c(a(x1555))))←→_ε c(a(b(a(x1555)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1555)))) ↔ t
• The critical peak s = c(c(a(x104)))←→_ε a(a(b(x104))) = t can be joined as follows.
  s ↔ c(a(b(x104))) ↔ a(b(b(x104))) ↔ t
• The critical peak s = c(c(a(x104)))←→_ε a(a(b(x104))) = t can be joined as follows.
  s ↔ c(a(b(x104))) ↔ a(b(b(x104))) ↔ a(a(a(x104))) ↔ t
• The critical peak s = c(c(a(x104)))←→_ε a(a(b(x104))) = t can be joined as follows.
  s ↔ c(a(b(x104))) ↔ c(a(a(x104))) ↔ a(a(a(x104))) ↔ t
• The critical peak s = b(c(b(x1557)))←→_ε c(a(c(x1557))) = t can be joined as follows.
  s ↔ a(a(a(x1557))) ↔ t
• The critical peak s = b(c(b(x1557)))←→_ε c(a(c(x1557))) = t can be joined as follows.
  s ↔ t
• The critical peak s = c(c(b(x1558)))←→_ε a(b(c(x1558))) = t can be joined as follows.
  s ↔ t
• The critical peak s = b(a(c(b(x1559))))←→_ε a(a(a(c(x1559)))) = t can be joined as follows.
  s ↔ c(a(c(b(x1559)))) ↔ a(a(a(b(x1559)))) ↔ a(a(c(b(x1559)))) ↔ t
• The critical peak s = b(a(c(b(x1559))))←→_ε a(a(a(c(x1559)))) = t can be joined as follows.
  s ↔ b(c(b(b(x1559)))) ↔ a(a(a(b(x1559)))) ↔ a(a(c(b(x1559)))) ↔ t
• The critical peak s = b(a(c(b(x1559))))←→_ε a(a(a(c(x1559)))) = t can be joined as follows.
  s ↔ a(a(b(b(x1559)))) ↔ a(a(a(b(x1559)))) ↔ a(a(c(b(x1559)))) ↔ t
• The critical peak s = b(a(c(b(x1559))))←→_ε a(a(a(c(x1559)))) = t can be joined as follows.
  s ↔ b(c(a(b(x1559)))) ↔ a(a(a(b(x1559)))) ↔ a(a(c(b(x1559)))) ↔ t
• The critical peak s = b(a(c(b(x1559))))←→_ε a(a(a(c(x1559)))) = t can be joined as follows.
  s ↔ b(a(a(c(x1559)))) ↔ t
• The critical peak s = b(a(c(b(x1559))))←→_ε a(a(a(c(x1559)))) = t can be joined as follows.
  s ↔ a(a(b(b(x1559)))) ↔ a(a(a(a(x1559)))) ↔ t
• The critical peak s = b(c(b(x112)))←→_ε a(a(b(x112))) = t can be joined as follows.
  s ↔ t
• The critical peak s = b(c(b(x112)))←→_ε a(a(b(x112))) = t can be joined as follows.
  s ↔ a(a(a(x112))) ↔ t
• The critical peak s = c(a(c(b(x1561))))←→_ε a(a(a(c(x1561)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1561)))) ↔ a(a(c(b(x1561)))) ↔ t
• The critical peak s = c(a(c(b(x1561))))←→_ε a(a(a(c(x1561)))) = t can be joined as follows.
  s ↔ a(b(c(b(x1561)))) ↔ a(a(a(b(x1561)))) ↔ a(a(c(b(x1561)))) ↔ t
• The critical peak s = c(a(c(b(x1561))))←→_ε a(a(a(c(x1561)))) = t can be joined as follows.
  s ↔ a(b(c(b(x1561)))) ↔ a(a(c(b(x1561)))) ↔ t
• The critical peak s = c(a(c(b(x1561))))←→_ε a(a(a(c(x1561)))) = t can be joined as follows.
  s ↔ a(b(c(b(x1561)))) ↔ a(a(a(a(x1561)))) ↔ t
• The critical peak s = c(a(c(b(x1561))))←→_ε a(a(a(c(x1561)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1561)))) ↔ a(a(a(a(x1561)))) ↔ t
• The critical peak s = c(a(c(b(x1561))))←→_ε a(a(a(c(x1561)))) = t can be joined as follows.
  s ↔ c(a(a(c(x1561)))) ↔ t
• The critical peak s = c(b(a(x100)))←→_ε a(a(a(x100))) = t can be joined as follows.
  s ↔ a(c(a(x100))) ↔ t
• The critical peak s = c(b(a(x100)))←→_ε a(a(a(x100))) = t can be joined as follows.
  s ↔ a(a(b(x100))) ↔ t
• The critical peak s = a(c(c(b(x1563))))←→_ε a(a(a(c(x1563)))) = t can be joined as follows.
  s ↔ a(c(a(c(x1563)))) ↔ t
• The critical peak s = a(c(c(b(x1563))))←→_ε a(a(a(c(x1563)))) = t can be joined as follows.
  s ↔ a(a(b(c(x1563)))) ↔ t
• The critical peak s = a(c(c(b(x1563))))←→_ε a(a(a(c(x1563)))) = t can be joined as follows.
  s ↔ a(c(a(c(x1563)))) ↔ a(a(a(a(x1563)))) ↔ t
• The critical peak s = a(c(c(b(x1563))))←→_ε a(a(a(c(x1563)))) = t can be joined as follows.
  s ↔ a(a(b(c(x1563)))) ↔ a(a(a(a(x1563)))) ↔ t
• The critical peak s = a(c(c(b(x1563))))←→_ε a(a(a(c(x1563)))) = t can be joined as follows.
  s ↔ c(a(a(b(x1563)))) ↔ a(a(a(b(x1563)))) ↔ a(a(c(b(x1563)))) ↔ t
• The critical peak s = c(b(c(x115)))←→_ε c(a(a(x115))) = t can be joined as follows.
  s ↔ t
• The critical peak s = a(c(b(x114)))←→_ε a(a(a(x114))) = t can be joined as follows.
  s ↔ a(a(c(x114))) ↔ t
• The critical peak s = c(b(b(x108)))←→_ε c(a(b(x108))) = t can be joined as follows.
  s ↔ t
• The critical peak s = c(b(c(b(x1567))))←→_ε a(a(b(c(x1567)))) = t can be joined as follows.
  s ↔ c(b(a(c(x1567)))) ↔ t
• The critical peak s = c(b(c(b(x1567))))←→_ε a(a(b(c(x1567)))) = t can be joined as follows.
  s ↔ a(c(c(b(x1567)))) ↔ t
• The critical peak s = c(b(c(b(x1567))))←→_ε a(a(b(c(x1567)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1567)))) ↔ a(a(a(a(x1567)))) ↔ t
• The critical peak s = c(b(c(b(x1567))))←→_ε a(a(b(c(x1567)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1567)))) ↔ a(a(a(a(x1567)))) ↔ a(a(a(c(x1567)))) ↔ t
• The critical peak s = c(c(b(x102)))←→_ε a(a(a(x102))) = t can be joined as follows.
  s ↔ c(a(c(x102))) ↔ t
• The critical peak s = c(c(b(x102)))←→_ε a(a(a(x102))) = t can be joined as follows.
  s ↔ a(b(c(x102))) ↔ t
• The critical peak s = c(b(a(x101)))←→_ε c(c(a(x101))) = t can be joined as follows.
  s ↔ t
• The critical peak s = a(c(c(b(x1570))))←→_ε c(c(a(c(x1570)))) = t can be joined as follows.
  s ↔ c(b(c(b(x1570)))) ↔ c(a(a(a(x1570)))) ↔ t
• The critical peak s = a(c(c(b(x1570))))←→_ε c(c(a(c(x1570)))) = t can be joined as follows.
  s ↔ c(b(c(b(x1570)))) ↔ c(a(a(a(x1570)))) ↔ c(a(b(c(x1570)))) ↔ t
• The critical peak s = a(c(c(b(x1570))))←→_ε c(c(a(c(x1570)))) = t can be joined as follows.
  s ↔ c(a(a(b(x1570)))) ↔ c(a(a(a(x1570)))) ↔ t
• The critical peak s = a(c(c(b(x1570))))←→_ε c(c(a(c(x1570)))) = t can be joined as follows.
  s ↔ c(a(a(b(x1570)))) ↔ c(a(a(a(x1570)))) ↔ c(a(b(c(x1570)))) ↔ t
• The critical peak s = a(c(c(b(x1570))))←→_ε c(c(a(c(x1570)))) = t can be joined as follows.
  s ↔ c(b(c(b(x1570)))) ↔ t
• The critical peak s = a(c(c(b(x1570))))←→_ε c(c(a(c(x1570)))) = t can be joined as follows.
  s ↔ a(c(a(c(x1570)))) ↔ t
• The critical peak s = a(c(c(b(x1570))))←→_ε c(c(a(c(x1570)))) = t can be joined as follows.
  s ↔ a(c(a(c(x1570)))) ↔ a(a(a(a(x1570)))) ↔ c(a(a(a(x1570)))) ↔ t
• The critical peak s = a(c(c(b(x1570))))←→_ε c(c(a(c(x1570)))) = t can be joined as follows.
  s ↔ a(a(b(c(x1570)))) ↔ a(a(a(a(x1570)))) ↔ c(a(a(a(x1570)))) ↔ t
• The critical peak s = a(a(b(x1571)))←→_ε c(b(a(x1571))) = t can be joined as follows.
  s ↔ a(a(b(x1571))) ↔ t
• The critical peak s = b(a(b(x1572)))←→_ε a(a(a(x1572))) = t can be joined as follows.
  s ↔ t
• The critical peak s = b(a(a(b(x1573))))←→_ε a(a(b(a(x1573)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1573)))) ↔ a(a(c(a(x1573)))) ↔ t
• The critical peak s = b(a(a(b(x1573))))←→_ε a(a(b(a(x1573)))) = t can be joined as follows.
  s ↔ c(a(a(b(x1573)))) ↔ a(a(a(b(x1573)))) ↔ a(a(c(a(x1573)))) ↔ t
• The critical peak s = b(a(a(b(x1573))))←→_ε a(a(b(a(x1573)))) = t can be joined as follows.
  s ↔ b(a(a(a(x1573)))) ↔ a(a(a(a(x1573)))) ↔ t
• The critical peak s = b(a(a(b(x1573))))←→_ε a(a(b(a(x1573)))) = t can be joined as follows.
  s ↔ b(a(a(a(x1573)))) ↔ a(a(a(a(x1573)))) ↔ a(a(c(a(x1573)))) ↔ t
• The critical peak s = b(a(a(b(x1573))))←→_ε a(a(b(a(x1573)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1573)))) ↔ a(a(a(a(x1573)))) ↔ t
• The critical peak s = b(a(a(b(x1573))))←→_ε a(a(b(a(x1573)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1573)))) ↔ a(a(a(a(x1573)))) ↔ a(a(c(a(x1573)))) ↔ t
• The critical peak s = a(b(a(x110)))←→_ε a(a(a(x110))) = t can be joined as follows.
  s ↔ t
• The critical peak s = a(a(b(x100)))←→_ε a(a(a(x100))) = t can be joined as follows.
  s ↔ t
• The critical peak s = a(c(a(b(x1576))))←→_ε c(a(a(a(x1576)))) = t can be joined as follows.
  s ↔ a(c(a(a(x1576)))) ↔ a(b(a(a(x1576)))) ↔ t
• The critical peak s = a(c(a(b(x1576))))←→_ε c(a(a(a(x1576)))) = t can be joined as follows.
  s ↔ c(b(a(b(x1576)))) ↔ t
• The critical peak s = a(c(a(b(x1576))))←→_ε c(a(a(a(x1576)))) = t can be joined as follows.
  s ↔ a(a(b(b(x1576)))) ↔ a(a(a(a(x1576)))) ↔ t
• The critical peak s = a(c(a(b(x1576))))←→_ε c(a(a(a(x1576)))) = t can be joined as follows.
  s ↔ a(a(b(b(x1576)))) ↔ a(a(a(a(x1576)))) ↔ a(b(a(a(x1576)))) ↔ t
• The critical peak s = a(c(a(b(x1576))))←→_ε c(a(a(a(x1576)))) = t can be joined as follows.
  s ↔ a(c(a(a(x1576)))) ↔ a(a(a(a(x1576)))) ↔ t
• The critical peak s = a(c(a(b(x1576))))←→_ε c(a(a(a(x1576)))) = t can be joined as follows.
  s ↔ a(c(a(a(x1576)))) ↔ a(a(a(a(x1576)))) ↔ a(b(a(a(x1576)))) ↔ t
• The critical peak s = a(c(a(b(x1576))))←→_ε c(a(a(a(x1576)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1576)))) ↔ a(a(a(a(x1576)))) ↔ t
• The critical peak s = a(c(a(b(x1576))))←→_ε c(a(a(a(x1576)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1576)))) ↔ a(a(a(a(x1576)))) ↔ a(b(a(a(x1576)))) ↔ t
• The critical peak s = a(a(a(b(x1577))))←→_ε a(a(a(a(x1577)))) = t can be joined as follows.
  s ↔ t
• The critical peak s = a(b(c(x102)))←→_ε a(a(a(x102))) = t can be joined as follows.
  s ↔ t
• The critical peak s = c(a(a(b(x1579))))←→_ε a(a(a(a(x1579)))) = t can be joined as follows.
  s ↔ a(b(a(b(x1579)))) ↔ t
• The critical peak s = c(a(a(b(x1579))))←→_ε a(a(a(a(x1579)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1579)))) ↔ t
• The critical peak s = c(a(a(b(x1579))))←→_ε a(a(a(a(x1579)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1579)))) ↔ t
• The critical peak s = a(a(b(x101)))←→_ε c(c(a(x101))) = t can be joined as follows.
  s ↔ a(a(b(x101))) ↔ a(b(b(x101))) ↔ c(a(b(x101))) ↔ t
• The critical peak s = a(a(b(x101)))←→_ε c(c(a(x101))) = t can be joined as follows.
  s ↔ a(a(a(x101))) ↔ a(b(b(x101))) ↔ c(a(b(x101))) ↔ t
• The critical peak s = a(a(b(x101)))←→_ε c(c(a(x101))) = t can be joined as follows.
  s ↔ a(a(a(x101))) ↔ c(a(a(x101))) ↔ c(a(b(x101))) ↔ t
• The critical peak s = b(a(b(x1581)))←→_ε a(b(b(x1581))) = t can be joined as follows.
  s ↔ t
• The critical peak s = b(a(b(x1581)))←→_ε a(b(b(x1581))) = t can be joined as follows.
  s ↔ a(a(a(x1581))) ↔ t
• The critical peak s = a(a(b(x1582)))←→_ε a(a(b(x1582))) = t can be joined as follows.
  s ↔ t
• The critical peak s = c(a(b(x1583)))←→_ε a(c(b(x1583))) = t can be joined as follows.
  s ↔ c(a(b(x1583))) ↔ t
• The critical peak s = b(a(a(b(x1584))))←→_ε a(b(b(b(x1584)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1584)))) ↔ t
• The critical peak s = b(a(a(b(x1585))))←→_ε a(a(a(b(x1585)))) = t can be joined as follows.
  s ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(c(a(b(x1586)))) ↔ a(c(a(b(x1586)))) ↔ a(a(c(b(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ a(c(b(b(x1586)))) ↔ a(a(c(b(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ c(a(a(b(x1586)))) ↔ a(c(c(b(x1586)))) ↔ a(c(a(c(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ c(a(a(b(x1586)))) ↔ c(b(a(c(x1586)))) ↔ a(c(a(c(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ c(a(a(a(x1586)))) ↔ c(c(a(c(x1586)))) ↔ a(c(a(c(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1586)))) ↔ c(a(a(a(x1586)))) ↔ c(c(a(c(x1586)))) ↔ a(c(a(c(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ c(a(a(b(x1586)))) ↔ c(a(a(a(x1586)))) ↔ c(c(a(c(x1586)))) ↔ a(c(a(c(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1586)))) ↔ c(a(b(a(x1586)))) ↔ c(a(a(a(x1586)))) ↔ c(c(a(c(x1586)))) ↔ a(c(a(c(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ a(b(b(b(x1586)))) ↔ a(a(b(b(x1586)))) ↔ a(c(a(b(x1586)))) ↔ a(a(c(b(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ a(b(b(b(x1586)))) ↔ a(a(a(b(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ a(b(b(b(x1586)))) ↔ a(a(a(b(x1586)))) ↔ a(a(c(b(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ a(b(b(b(x1586)))) ↔ a(a(a(b(x1586)))) ↔ a(b(a(c(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ a(b(b(b(x1586)))) ↔ a(a(a(b(x1586)))) ↔ a(c(a(b(x1586)))) ↔ a(a(c(b(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ c(a(a(b(x1586)))) ↔ a(a(a(b(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ c(a(a(b(x1586)))) ↔ a(a(a(b(x1586)))) ↔ a(a(c(b(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ c(a(a(b(x1586)))) ↔ a(a(a(b(x1586)))) ↔ a(b(a(c(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ c(a(a(b(x1586)))) ↔ a(a(a(b(x1586)))) ↔ a(c(a(b(x1586)))) ↔ a(a(c(b(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ a(a(a(b(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ a(a(a(b(x1586)))) ↔ a(a(c(b(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ a(a(a(b(x1586)))) ↔ a(b(a(c(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ a(c(a(c(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ a(c(a(c(x1586)))) ↔ a(b(a(c(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ a(a(a(c(x1586)))) ↔ a(a(c(b(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ a(a(a(c(x1586)))) ↔ a(b(a(c(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ a(a(a(c(x1586)))) ↔ a(c(a(c(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ a(a(b(c(x1586)))) ↔ a(c(a(c(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ a(a(a(b(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ a(a(a(b(x1586)))) ↔ a(a(c(b(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ a(a(a(b(x1586)))) ↔ a(b(a(c(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ a(c(a(c(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ a(c(a(c(x1586)))) ↔ a(b(a(c(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ a(a(a(c(x1586)))) ↔ a(a(c(b(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ a(a(a(c(x1586)))) ↔ a(b(a(c(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ a(a(a(c(x1586)))) ↔ a(c(a(c(x1586)))) ↔ t
• The critical peak s = c(c(a(b(x1586))))←→_ε a(b(c(b(x1586)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1586)))) ↔ c(a(a(a(x1586)))) ↔ a(a(a(a(x1586)))) ↔ a(a(b(c(x1586)))) ↔ a(c(a(c(x1586)))) ↔ t
• The critical peak s = b(c(a(b(x1587))))←→_ε a(a(a(b(x1587)))) = t can be joined as follows.
  s ↔ t
• The critical peak s = b(c(a(b(x1588))))←→_ε c(a(c(b(x1588)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1588)))) ↔ t
• The critical peak s = a(a(b(x110)))←→_ε a(a(a(x110))) = t can be joined as follows.
  s ↔ t
• The critical peak s = a(b(a(b(x1590))))←→_ε a(a(a(b(x1590)))) = t can be joined as follows.
  s ↔ t
• The critical peak s = a(b(a(b(x1590))))←→_ε a(a(a(b(x1590)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1590)))) ↔ t
• The critical peak s = a(c(a(b(x1591))))←→_ε c(a(b(b(x1591)))) = t can be joined as follows.
  s ↔ a(a(b(b(x1591)))) ↔ a(b(b(b(x1591)))) ↔ t
• The critical peak s = a(c(a(b(x1591))))←→_ε c(a(b(b(x1591)))) = t can be joined as follows.
  s ↔ c(b(a(b(x1591)))) ↔ a(a(b(b(x1591)))) ↔ a(b(b(b(x1591)))) ↔ t
• The critical peak s = a(c(a(b(x1591))))←→_ε c(a(b(b(x1591)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1591)))) ↔ a(b(b(b(x1591)))) ↔ t
• The critical peak s = a(c(a(b(x1591))))←→_ε c(a(b(b(x1591)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1591)))) ↔ c(a(a(b(x1591)))) ↔ t
• The critical peak s = a(c(a(b(x1591))))←→_ε c(a(b(b(x1591)))) = t can be joined as follows.
  s ↔ a(a(b(b(x1591)))) ↔ a(a(a(b(x1591)))) ↔ a(b(b(b(x1591)))) ↔ t
• The critical peak s = a(c(a(b(x1591))))←→_ε c(a(b(b(x1591)))) = t can be joined as follows.
  s ↔ a(a(b(b(x1591)))) ↔ a(a(a(b(x1591)))) ↔ c(a(a(b(x1591)))) ↔ t
• The critical peak s = a(c(a(b(x1591))))←→_ε c(a(b(b(x1591)))) = t can be joined as follows.
  s ↔ c(b(a(b(x1591)))) ↔ t
• The critical peak s = a(c(a(b(x1591))))←→_ε c(a(b(b(x1591)))) = t can be joined as follows.
  s ↔ c(c(a(b(x1591)))) ↔ t
• The critical peak s = a(c(a(b(x1591))))←→_ε c(a(b(b(x1591)))) = t can be joined as follows.
  s ↔ c(b(a(b(x1591)))) ↔ c(a(a(a(x1591)))) ↔ t
• The critical peak s = a(c(a(b(x1591))))←→_ε c(a(b(b(x1591)))) = t can be joined as follows.
  s ↔ c(b(a(b(x1591)))) ↔ c(a(a(a(x1591)))) ↔ c(a(a(b(x1591)))) ↔ t
• The critical peak s = a(c(a(b(x1591))))←→_ε c(a(b(b(x1591)))) = t can be joined as follows.
  s ↔ a(a(b(b(x1591)))) ↔ a(a(a(a(x1591)))) ↔ c(a(a(a(x1591)))) ↔ t
• The critical peak s = a(c(a(b(x1591))))←→_ε c(a(b(b(x1591)))) = t can be joined as follows.
  s ↔ a(c(a(a(x1591)))) ↔ a(a(a(a(x1591)))) ↔ c(a(a(a(x1591)))) ↔ t
• The critical peak s = a(c(a(b(x1591))))←→_ε c(a(b(b(x1591)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1591)))) ↔ a(a(a(a(x1591)))) ↔ c(a(a(a(x1591)))) ↔ t
• The critical peak s = b(a(a(x1592)))←→_ε c(a(b(x1592))) = t can be joined as follows.
  s ↔ c(a(a(x1592))) ↔ t
• The critical peak s = c(a(a(x1593)))←→_ε a(b(b(x1593))) = t can be joined as follows.
  s ↔ a(a(a(x1593))) ↔ t
• The critical peak s = b(a(a(a(x1594))))←→_ε a(a(a(b(x1594)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1594)))) ↔ t
• The critical peak s = c(a(a(a(x1595))))←→_ε a(a(a(b(x1595)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1595)))) ↔ t
• The critical peak s = b(a(a(x106)))←→_ε a(b(b(x106))) = t can be joined as follows.
  s ↔ a(a(a(x106))) ↔ t
• The critical peak s = b(a(a(x105)))←→_ε a(a(a(x105))) = t can be joined as follows.
  s ↔ t
• The critical peak s = a(c(a(a(x1598))))←→_ε a(a(a(b(x1598)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1598)))) ↔ t
• The critical peak s = a(a(b(x110)))←→_ε a(a(a(x110))) = t can be joined as follows.
  s ↔ t
• The critical peak s = c(b(a(a(x1600))))←→_ε a(a(b(b(x1600)))) = t can be joined as follows.
  s ↔ a(c(a(a(x1600)))) ↔ a(a(a(a(x1600)))) ↔ t
• The critical peak s = c(b(a(a(x1600))))←→_ε a(a(b(b(x1600)))) = t can be joined as follows.
  s ↔ a(c(a(a(x1600)))) ↔ a(a(a(a(x1600)))) ↔ a(a(a(b(x1600)))) ↔ t
• The critical peak s = c(b(a(a(x1600))))←→_ε a(a(b(b(x1600)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1600)))) ↔ a(a(a(a(x1600)))) ↔ t
• The critical peak s = c(b(a(a(x1600))))←→_ε a(a(b(b(x1600)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1600)))) ↔ a(a(a(a(x1600)))) ↔ a(a(a(b(x1600)))) ↔ t
• The critical peak s = c(b(a(a(x1600))))←→_ε a(a(b(b(x1600)))) = t can be joined as follows.
  s ↔ a(a(b(a(x1600)))) ↔ a(a(a(a(x1600)))) ↔ t
• The critical peak s = c(b(a(a(x1600))))←→_ε a(a(b(b(x1600)))) = t can be joined as follows.
  s ↔ a(a(b(a(x1600)))) ↔ a(a(a(a(x1600)))) ↔ a(a(a(b(x1600)))) ↔ t
• The critical peak s = a(c(a(a(x1601))))←→_ε c(c(a(b(x1601)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1601)))) ↔ t
• The critical peak s = a(a(c(x1602)))←→_ε c(b(b(x1602))) = t can be joined as follows.
  s ↔ a(c(b(x1602))) ↔ t
• The critical peak s = b(a(c(x1603)))←→_ε a(a(b(x1603))) = t can be joined as follows.
  s ↔ t
• The critical peak s = b(a(a(c(x1604))))←→_ε a(a(b(b(x1604)))) = t can be joined as follows.
  s ↔ b(a(c(b(x1604)))) ↔ t
• The critical peak s = b(a(a(c(x1604))))←→_ε a(a(b(b(x1604)))) = t can be joined as follows.
  s ↔ a(a(a(c(x1604)))) ↔ a(a(a(a(x1604)))) ↔ t
• The critical peak s = b(a(a(c(x1604))))←→_ε a(a(b(b(x1604)))) = t can be joined as follows.
  s ↔ a(a(a(c(x1604)))) ↔ a(a(a(a(x1604)))) ↔ a(a(a(b(x1604)))) ↔ t
• The critical peak s = b(a(a(c(x1604))))←→_ε a(a(b(b(x1604)))) = t can be joined as follows.
  s ↔ b(a(a(a(x1604)))) ↔ a(a(a(a(x1604)))) ↔ t
• The critical peak s = b(a(a(c(x1604))))←→_ε a(a(b(b(x1604)))) = t can be joined as follows.
  s ↔ b(a(a(a(x1604)))) ↔ a(a(a(a(x1604)))) ↔ a(a(a(b(x1604)))) ↔ t
• The critical peak s = c(a(c(x103)))←→_ε a(b(c(x103))) = t can be joined as follows.
  s ↔ t
• The critical peak s = c(a(c(x103)))←→_ε a(b(c(x103))) = t can be joined as follows.
  s ↔ a(a(a(x103))) ↔ t
• The critical peak s = b(a(c(x102)))←→_ε a(a(a(x102))) = t can be joined as follows.
  s ↔ c(a(c(x102))) ↔ t
• The critical peak s = b(a(c(x102)))←→_ε a(a(a(x102))) = t can be joined as follows.
  s ↔ b(c(b(x102))) ↔ t
• The critical peak s = b(a(c(x102)))←→_ε a(a(a(x102))) = t can be joined as follows.
  s ↔ a(a(b(x102))) ↔ t
• The critical peak s = b(a(c(x102)))←→_ε c(a(c(x102))) = t can be joined as follows.
  s ↔ t
• The critical peak s = a(c(a(c(x1608))))←→_ε c(a(a(b(x1608)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1608)))) ↔ a(b(a(b(x1608)))) ↔ t
• The critical peak s = a(c(a(c(x1608))))←→_ε c(a(a(b(x1608)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1608)))) ↔ c(a(a(a(x1608)))) ↔ t
• The critical peak s = a(c(a(c(x1608))))←→_ε c(a(a(b(x1608)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1608)))) ↔ a(a(a(b(x1608)))) ↔ t
• The critical peak s = a(c(a(c(x1608))))←→_ε c(a(a(b(x1608)))) = t can be joined as follows.
  s ↔ a(a(b(c(x1608)))) ↔ a(a(a(a(x1608)))) ↔ a(b(a(b(x1608)))) ↔ t
• The critical peak s = a(c(a(c(x1608))))←→_ε c(a(a(b(x1608)))) = t can be joined as follows.
  s ↔ a(a(b(c(x1608)))) ↔ a(a(a(a(x1608)))) ↔ c(a(a(a(x1608)))) ↔ t
• The critical peak s = a(c(a(c(x1608))))←→_ε c(a(a(b(x1608)))) = t can be joined as follows.
  s ↔ a(a(b(c(x1608)))) ↔ a(a(a(a(x1608)))) ↔ a(a(a(b(x1608)))) ↔ t
• The critical peak s = a(c(a(c(x1608))))←→_ε c(a(a(b(x1608)))) = t can be joined as follows.
  s ↔ a(a(a(c(x1608)))) ↔ a(a(a(a(x1608)))) ↔ a(b(a(b(x1608)))) ↔ t
• The critical peak s = a(c(a(c(x1608))))←→_ε c(a(a(b(x1608)))) = t can be joined as follows.
  s ↔ a(a(a(c(x1608)))) ↔ a(a(a(a(x1608)))) ↔ c(a(a(a(x1608)))) ↔ t
• The critical peak s = a(c(a(c(x1608))))←→_ε c(a(a(b(x1608)))) = t can be joined as follows.
  s ↔ a(a(a(c(x1608)))) ↔ a(a(a(a(x1608)))) ↔ a(a(a(b(x1608)))) ↔ t
• The critical peak s = a(c(a(c(x1608))))←→_ε c(a(a(b(x1608)))) = t can be joined as follows.
  s ↔ a(c(c(b(x1608)))) ↔ t
• The critical peak s = a(c(a(c(x1608))))←→_ε c(a(a(b(x1608)))) = t can be joined as follows.
  s ↔ c(b(a(c(x1608)))) ↔ t
• The critical peak s = a(c(a(c(x1608))))←→_ε c(a(a(b(x1608)))) = t can be joined as follows.
  s ↔ c(c(a(c(x1608)))) ↔ c(a(a(a(x1608)))) ↔ t
• The critical peak s = a(a(a(c(x1609))))←→_ε a(a(a(b(x1609)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1609)))) ↔ t
• The critical peak s = a(a(c(x108)))←→_ε c(a(b(x108))) = t can be joined as follows.
  s ↔ a(a(a(x108))) ↔ a(b(b(x108))) ↔ t
• The critical peak s = a(a(c(x108)))←→_ε c(a(b(x108))) = t can be joined as follows.
  s ↔ a(a(a(x108))) ↔ c(a(a(x108))) ↔ t
• The critical peak s = a(a(c(x108)))←→_ε c(a(b(x108))) = t can be joined as follows.
  s ↔ a(c(b(x108))) ↔ t
• The critical peak s = a(c(a(x104)))←→_ε a(a(b(x104))) = t can be joined as follows.
  s ↔ t
• The critical peak s = a(c(a(x104)))←→_ε a(a(b(x104))) = t can be joined as follows.
  s ↔ a(a(a(x104))) ↔ t
• The critical peak s = c(a(a(c(x1612))))←→_ε a(a(a(b(x1612)))) = t can be joined as follows.
  s ↔ c(a(c(b(x1612)))) ↔ t
• The critical peak s = c(a(a(c(x1612))))←→_ε a(a(a(b(x1612)))) = t can be joined as follows.
  s ↔ a(b(a(c(x1612)))) ↔ t
• The critical peak s = c(a(a(c(x1612))))←→_ε a(a(a(b(x1612)))) = t can be joined as follows.
  s ↔ a(a(a(c(x1612)))) ↔ a(a(a(a(x1612)))) ↔ t
• The critical peak s = c(a(a(c(x1612))))←→_ε a(a(a(b(x1612)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1612)))) ↔ a(a(a(a(x1612)))) ↔ t
• The critical peak s = b(a(a(x1613)))←→_ε a(b(c(x1613))) = t can be joined as follows.
  s ↔ a(a(a(x1613))) ↔ t
• The critical peak s = a(a(a(x1614)))←→_ε a(a(c(x1614))) = t can be joined as follows.
  s ↔ a(a(a(x1614))) ↔ t
• The critical peak s = c(a(a(x1615)))←→_ε a(c(c(x1615))) = t can be joined as follows.
  s ↔ c(a(a(x1615))) ↔ t
• The critical peak s = b(a(a(a(x1616))))←→_ε a(b(b(c(x1616)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1616)))) ↔ a(a(b(c(x1616)))) ↔ t
• The critical peak s = b(a(a(a(x1616))))←→_ε a(b(b(c(x1616)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1616)))) ↔ a(b(a(a(x1616)))) ↔ t
• The critical peak s = b(a(a(a(x1616))))←→_ε a(b(b(c(x1616)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1616)))) ↔ a(a(a(c(x1616)))) ↔ t
• The critical peak s = b(a(a(a(x1616))))←→_ε a(b(b(c(x1616)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1616)))) ↔ a(a(a(a(x1616)))) ↔ a(a(b(c(x1616)))) ↔ t
• The critical peak s = b(a(a(a(x1616))))←→_ε a(b(b(c(x1616)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1616)))) ↔ a(a(a(a(x1616)))) ↔ a(b(a(a(x1616)))) ↔ t
• The critical peak s = b(a(a(a(x1616))))←→_ε a(b(b(c(x1616)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1616)))) ↔ a(a(a(a(x1616)))) ↔ a(a(a(c(x1616)))) ↔ t
• The critical peak s = b(a(a(a(x1616))))←→_ε a(b(b(c(x1616)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1616)))) ↔ a(b(a(a(x1616)))) ↔ t
• The critical peak s = b(a(a(a(x1617))))←→_ε a(a(a(c(x1617)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1617)))) ↔ t
• The critical peak s = c(c(a(a(x1618))))←→_ε a(b(c(c(x1618)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1618)))) ↔ a(a(a(a(x1618)))) ↔ a(a(a(c(x1618)))) ↔ t
• The critical peak s = a(a(b(x102)))←→_ε a(a(a(x102))) = t can be joined as follows.
  s ↔ t
• The critical peak s = b(c(a(a(x1620))))←→_ε a(a(a(c(x1620)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1620)))) ↔ t
• The critical peak s = a(a(b(x102)))←→_ε c(a(c(x102))) = t can be joined as follows.
  s ↔ a(a(a(x102))) ↔ t
• The critical peak s = b(c(a(a(x1622))))←→_ε c(a(c(c(x1622)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1622)))) ↔ a(a(a(c(x1622)))) ↔ t
• The critical peak s = b(c(a(a(x1622))))←→_ε c(a(c(c(x1622)))) = t can be joined as follows.
  s ↔ b(a(b(a(x1622)))) ↔ a(a(a(a(x1622)))) ↔ a(a(a(c(x1622)))) ↔ t
• The critical peak s = b(c(a(a(x1622))))←→_ε c(a(c(c(x1622)))) = t can be joined as follows.
  s ↔ b(a(a(a(x1622)))) ↔ a(a(a(a(x1622)))) ↔ a(a(a(c(x1622)))) ↔ t
• The critical peak s = b(c(a(a(x1622))))←→_ε c(a(c(c(x1622)))) = t can be joined as follows.
  s ↔ b(a(b(a(x1622)))) ↔ c(a(b(a(x1622)))) ↔ c(c(a(a(x1622)))) ↔ t
• The critical peak s = b(c(a(a(x1622))))←→_ε c(a(c(c(x1622)))) = t can be joined as follows.
  s ↔ b(a(a(a(x1622)))) ↔ c(a(a(a(x1622)))) ↔ c(c(a(a(x1622)))) ↔ t
• The critical peak s = a(b(a(a(x1623))))←→_ε a(a(a(c(x1623)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1623)))) ↔ t
• The critical peak s = a(c(a(a(x1624))))←→_ε c(a(b(c(x1624)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1624)))) ↔ c(a(a(a(x1624)))) ↔ t
• The critical peak s = a(c(a(a(x1624))))←→_ε c(a(b(c(x1624)))) = t can be joined as follows.
  s ↔ a(a(b(a(x1624)))) ↔ a(a(a(a(x1624)))) ↔ c(a(a(a(x1624)))) ↔ t
• The critical peak s = a(c(a(a(x1624))))←→_ε c(a(b(c(x1624)))) = t can be joined as follows.
  s ↔ c(b(a(a(x1624)))) ↔ c(a(a(a(x1624)))) ↔ t
• The critical peak s = a(c(a(a(x1624))))←→_ε c(a(b(c(x1624)))) = t can be joined as follows.
  s ↔ c(b(a(a(x1624)))) ↔ c(a(a(a(x1624)))) ↔ c(a(a(c(x1624)))) ↔ t
• The critical peak s = a(c(a(a(x1624))))←→_ε c(a(b(c(x1624)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1624)))) ↔ c(a(a(a(x1624)))) ↔ t
• The critical peak s = a(c(a(a(x1624))))←→_ε c(a(b(c(x1624)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1624)))) ↔ c(a(a(a(x1624)))) ↔ c(a(a(c(x1624)))) ↔ t
• The critical peak s = a(a(a(x1625)))←→_ε c(a(a(x1625))) = t can be joined as follows.
  s ↔ a(a(a(x1625))) ↔ t
• The critical peak s = b(a(a(a(x1626))))←→_ε a(b(a(a(x1626)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1626)))) ↔ t
• The critical peak s = a(a(a(a(x1627))))←→_ε a(a(a(a(x1627)))) = t can be joined as follows.
  s ↔ t
• The critical peak s = c(a(a(a(x1628))))←→_ε a(c(a(a(x1628)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1628)))) ↔ t
• The critical peak s = b(a(a(a(a(x1629)))))←→_ε a(b(b(a(a(x1629))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1629))))) ↔ t
• The critical peak s = b(a(a(a(a(x1630)))))←→_ε a(a(a(a(a(x1630))))) = t can be joined as follows.
  s ↔ t
• The critical peak s = c(c(a(a(a(x1631)))))←→_ε a(b(c(a(a(x1631))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1631))))) ↔ a(b(a(a(a(x1631))))) ↔ t
• The critical peak s = c(c(a(a(a(x1631)))))←→_ε a(b(c(a(a(x1631))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1631))))) ↔ a(b(a(a(a(x1631))))) ↔ a(b(a(b(a(x1631))))) ↔ t
• The critical peak s = c(c(a(a(a(x1631)))))←→_ε a(b(c(a(a(x1631))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1631))))) ↔ a(a(a(a(a(x1631))))) ↔ t
• The critical peak s = c(c(a(a(a(x1631)))))←→_ε a(b(c(a(a(x1631))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1631))))) ↔ a(a(a(a(a(x1631))))) ↔ a(b(a(b(a(x1631))))) ↔ t
• The critical peak s = c(c(a(a(a(x1631)))))←→_ε a(b(c(a(a(x1631))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1631))))) ↔ a(a(a(a(a(x1631))))) ↔ a(a(c(a(a(x1631))))) ↔ t
• The critical peak s = c(c(a(a(a(x1631)))))←→_ε a(b(c(a(a(x1631))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1631))))) ↔ a(a(a(a(a(x1631))))) ↔ a(b(a(a(a(x1631))))) ↔ t
• The critical peak s = b(c(a(a(a(x1632)))))←→_ε a(a(a(a(a(x1632))))) = t can be joined as follows.
  s ↔ t
• The critical peak s = b(c(a(a(a(x1633)))))←→_ε c(a(c(a(a(x1633))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1633))))) ↔ t
• The critical peak s = a(b(a(a(a(x1634)))))←→_ε a(a(a(a(a(x1634))))) = t can be joined as follows.
  s ↔ t
• The critical peak s = a(c(a(a(a(x1635)))))←→_ε c(a(b(a(a(x1635))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1635))))) ↔ a(b(b(a(a(x1635))))) ↔ t
• The critical peak s = a(c(a(a(a(x1635)))))←→_ε c(a(b(a(a(x1635))))) = t can be joined as follows.
  s ↔ c(b(a(a(a(x1635))))) ↔ a(a(b(a(a(x1635))))) ↔ a(b(b(a(a(x1635))))) ↔ t
• The critical peak s = a(c(a(a(a(x1635)))))←→_ε c(a(b(a(a(x1635))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1635))))) ↔ c(a(c(a(a(x1635))))) ↔ t
• The critical peak s = a(c(a(a(a(x1635)))))←→_ε c(a(b(a(a(x1635))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1635))))) ↔ a(b(b(a(a(x1635))))) ↔ t
• The critical peak s = a(c(a(a(a(x1635)))))←→_ε c(a(b(a(a(x1635))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1635))))) ↔ c(a(a(a(a(x1635))))) ↔ t
• The critical peak s = a(c(a(a(a(x1635)))))←→_ε c(a(b(a(a(x1635))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1635))))) ↔ a(a(a(a(a(x1635))))) ↔ c(a(c(a(a(x1635))))) ↔ t
• The critical peak s = a(c(a(a(a(x1635)))))←→_ε c(a(b(a(a(x1635))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1635))))) ↔ a(a(a(a(a(x1635))))) ↔ a(b(b(a(a(x1635))))) ↔ t
• The critical peak s = a(c(a(a(a(x1635)))))←→_ε c(a(b(a(a(x1635))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1635))))) ↔ a(a(a(a(a(x1635))))) ↔ c(a(a(a(a(x1635))))) ↔ t
• The critical peak s = a(c(a(a(a(x1635)))))←→_ε c(a(b(a(a(x1635))))) = t can be joined as follows.
  s ↔ c(b(a(a(a(x1635))))) ↔ c(a(a(a(a(x1635))))) ↔ t
• The critical peak s = a(c(a(a(a(x1635)))))←→_ε c(a(b(a(a(x1635))))) = t can be joined as follows.
  s ↔ c(b(a(a(a(x1635))))) ↔ c(a(a(a(a(x1635))))) ↔ c(a(c(a(a(x1635))))) ↔ t
• The critical peak s = a(c(a(a(a(x1635)))))←→_ε c(a(b(a(a(x1635))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1635))))) ↔ c(a(a(a(a(x1635))))) ↔ t
• The critical peak s = a(c(a(a(a(x1635)))))←→_ε c(a(b(a(a(x1635))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1635))))) ↔ c(a(a(a(a(x1635))))) ↔ c(a(c(a(a(x1635))))) ↔ t
• The critical peak s = a(c(a(a(a(x1635)))))←→_ε c(a(b(a(a(x1635))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1635))))) ↔ t
• The critical peak s = c(a(a(a(x1636))))←→_ε a(a(b(a(x1636)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1636)))) ↔ t
• The critical peak s = a(a(b(x1637)))←→_ε c(a(c(x1637))) = t can be joined as follows.
  s ↔ a(a(a(x1637))) ↔ t
• The critical peak s = b(a(a(b(x1638))))←→_ε a(b(a(c(x1638)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1638)))) ↔ t
• The critical peak s = a(a(a(b(x1639))))←→_ε a(a(a(c(x1639)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1639)))) ↔ t
• The critical peak s = c(a(a(b(x1640))))←→_ε a(c(a(c(x1640)))) = t can be joined as follows.
  s ↔ c(a(a(b(x1640)))) ↔ a(c(c(b(x1640)))) ↔ t
• The critical peak s = c(a(a(b(x1640))))←→_ε a(c(a(c(x1640)))) = t can be joined as follows.
  s ↔ c(a(a(b(x1640)))) ↔ c(b(a(c(x1640)))) ↔ t
• The critical peak s = c(a(a(b(x1640))))←→_ε a(c(a(c(x1640)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1640)))) ↔ c(c(a(c(x1640)))) ↔ t
• The critical peak s = c(a(a(b(x1640))))←→_ε a(c(a(c(x1640)))) = t can be joined as follows.
  s ↔ a(b(a(b(x1640)))) ↔ a(a(a(a(x1640)))) ↔ t
• The critical peak s = c(a(a(b(x1640))))←→_ε a(c(a(c(x1640)))) = t can be joined as follows.
  s ↔ a(b(a(b(x1640)))) ↔ a(a(a(a(x1640)))) ↔ a(a(b(c(x1640)))) ↔ t
• The critical peak s = c(a(a(b(x1640))))←→_ε a(c(a(c(x1640)))) = t can be joined as follows.
  s ↔ a(b(a(b(x1640)))) ↔ a(a(a(a(x1640)))) ↔ a(a(a(c(x1640)))) ↔ t
• The critical peak s = c(a(a(b(x1640))))←→_ε a(c(a(c(x1640)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1640)))) ↔ a(a(a(a(x1640)))) ↔ t
• The critical peak s = c(a(a(b(x1640))))←→_ε a(c(a(c(x1640)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1640)))) ↔ a(a(a(a(x1640)))) ↔ a(a(b(c(x1640)))) ↔ t
• The critical peak s = c(a(a(b(x1640))))←→_ε a(c(a(c(x1640)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1640)))) ↔ a(a(a(a(x1640)))) ↔ a(a(a(c(x1640)))) ↔ t
• The critical peak s = c(a(a(b(x1640))))←→_ε a(c(a(c(x1640)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1640)))) ↔ a(a(a(a(x1640)))) ↔ t
• The critical peak s = c(a(a(b(x1640))))←→_ε a(c(a(c(x1640)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1640)))) ↔ a(a(a(a(x1640)))) ↔ a(a(b(c(x1640)))) ↔ t
• The critical peak s = c(a(a(b(x1640))))←→_ε a(c(a(c(x1640)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1640)))) ↔ a(a(a(a(x1640)))) ↔ a(a(a(c(x1640)))) ↔ t
• The critical peak s = b(a(a(a(b(x1641)))))←→_ε a(b(b(a(c(x1641))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1641))))) ↔ a(a(b(a(c(x1641))))) ↔ t
• The critical peak s = b(a(a(a(b(x1641)))))←→_ε a(b(b(a(c(x1641))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1641))))) ↔ a(b(a(a(b(x1641))))) ↔ t
• The critical peak s = b(a(a(a(b(x1641)))))←→_ε a(b(b(a(c(x1641))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1641))))) ↔ a(a(a(a(b(x1641))))) ↔ a(a(b(a(c(x1641))))) ↔ t
• The critical peak s = b(a(a(a(b(x1641)))))←→_ε a(b(b(a(c(x1641))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1641))))) ↔ a(a(a(a(b(x1641))))) ↔ a(b(a(a(b(x1641))))) ↔ t
• The critical peak s = b(a(a(a(b(x1641)))))←→_ε a(b(b(a(c(x1641))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1641))))) ↔ a(b(a(a(b(x1641))))) ↔ t
• The critical peak s = b(a(a(a(b(x1641)))))←→_ε a(b(b(a(c(x1641))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1641))))) ↔ a(b(a(a(b(x1641))))) ↔ a(b(b(c(b(x1641))))) ↔ t
• The critical peak s = b(a(a(a(b(x1641)))))←→_ε a(b(b(a(c(x1641))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1641))))) ↔ a(a(a(a(a(x1641))))) ↔ a(a(a(a(c(x1641))))) ↔ t
• The critical peak s = b(a(a(a(b(x1641)))))←→_ε a(b(b(a(c(x1641))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1641))))) ↔ a(a(a(a(a(x1641))))) ↔ a(a(a(a(c(x1641))))) ↔ t
• The critical peak s = b(a(a(a(b(x1642)))))←→_ε a(a(a(a(c(x1642))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1642))))) ↔ a(a(a(c(b(x1642))))) ↔ t
• The critical peak s = b(a(a(a(b(x1642)))))←→_ε a(a(a(a(c(x1642))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1642))))) ↔ a(a(a(a(b(x1642))))) ↔ a(a(a(c(b(x1642))))) ↔ t
• The critical peak s = b(a(a(a(b(x1642)))))←→_ε a(a(a(a(c(x1642))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1642))))) ↔ a(a(a(a(a(x1642))))) ↔ t
• The critical peak s = b(a(a(a(b(x1642)))))←→_ε a(a(a(a(c(x1642))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1642))))) ↔ a(a(a(a(a(x1642))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1643))))) ↔ a(c(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(a(a(a(b(x1643))))) ↔ a(a(a(c(b(x1643))))) ↔ a(b(c(c(b(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(a(a(a(b(x1643))))) ↔ a(a(a(c(b(x1643))))) ↔ a(a(a(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ c(a(a(a(b(x1643))))) ↔ a(a(a(a(b(x1643))))) ↔ a(a(a(c(b(x1643))))) ↔ a(b(c(c(b(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ c(a(a(a(b(x1643))))) ↔ a(a(a(a(b(x1643))))) ↔ a(a(a(c(b(x1643))))) ↔ a(a(a(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ c(a(c(a(b(x1643))))) ↔ a(a(a(a(b(x1643))))) ↔ a(a(a(c(b(x1643))))) ↔ a(b(c(c(b(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ c(a(c(a(b(x1643))))) ↔ a(a(a(a(b(x1643))))) ↔ a(a(a(c(b(x1643))))) ↔ a(a(a(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ a(b(b(a(b(x1643))))) ↔ a(a(a(a(b(x1643))))) ↔ a(a(a(c(b(x1643))))) ↔ a(b(c(c(b(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ a(b(b(a(b(x1643))))) ↔ a(a(a(a(b(x1643))))) ↔ a(a(a(c(b(x1643))))) ↔ a(a(a(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(b(a(a(b(x1643))))) ↔ a(a(a(a(b(x1643))))) ↔ a(a(a(c(b(x1643))))) ↔ a(b(c(c(b(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(b(a(a(b(x1643))))) ↔ a(a(a(a(b(x1643))))) ↔ a(a(a(c(b(x1643))))) ↔ a(a(a(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ a(b(b(a(b(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ a(b(b(a(b(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ a(b(b(a(b(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ a(b(c(c(b(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ a(b(b(a(b(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ a(b(a(a(c(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ a(b(c(c(b(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ a(b(a(a(c(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ a(b(c(c(b(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ a(b(a(a(c(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ a(b(c(c(b(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ a(b(a(a(c(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(b(a(a(b(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(b(a(a(b(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(b(a(a(b(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ a(b(c(c(b(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(b(a(a(b(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ a(b(a(a(c(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(c(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(a(c(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(a(c(x1643))))) ↔ a(a(c(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(b(c(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(b(c(x1643))))) ↔ a(a(c(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(b(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(c(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(c(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(a(c(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(a(c(x1643))))) ↔ a(a(c(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(b(c(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(b(c(x1643))))) ↔ a(a(c(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(c(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(c(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(a(c(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(a(c(x1643))))) ↔ a(a(c(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(b(c(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(b(c(x1643))))) ↔ a(a(c(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ c(a(a(a(a(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(c(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(a(a(a(b(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(c(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(a(a(a(b(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(a(a(a(b(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(a(c(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(a(a(a(b(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(a(c(x1643))))) ↔ a(a(c(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(a(a(a(b(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(a(a(a(b(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(a(a(a(b(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(b(c(x1643))))) ↔ a(b(a(b(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(a(a(a(b(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(a(a(b(c(x1643))))) ↔ a(a(c(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(a(a(a(b(x1643))))) ↔ a(a(a(a(a(x1643))))) ↔ a(c(a(a(a(x1643))))) ↔ a(b(a(a(a(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(b(a(a(b(x1643))))) ↔ a(c(a(a(b(x1643))))) ↔ a(a(c(c(b(x1643))))) ↔ a(b(c(c(b(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(b(a(a(b(x1643))))) ↔ a(c(a(a(b(x1643))))) ↔ a(a(c(c(b(x1643))))) ↔ a(a(c(a(c(x1643))))) ↔ t
• The critical peak s = c(c(a(a(b(x1643)))))←→_ε a(b(c(a(c(x1643))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1643))))) ↔ a(b(a(a(b(x1643))))) ↔ a(c(a(a(b(x1643))))) ↔ a(c(b(a(c(x1643))))) ↔ a(a(c(a(c(x1643))))) ↔ t
• The critical peak s = b(c(a(a(b(x1644)))))←→_ε a(a(a(a(c(x1644))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1644))))) ↔ a(a(a(c(b(x1644))))) ↔ t
• The critical peak s = b(c(a(a(b(x1644)))))←→_ε a(a(a(a(c(x1644))))) = t can be joined as follows.
  s ↔ b(a(b(a(b(x1644))))) ↔ a(a(a(a(b(x1644))))) ↔ a(a(a(c(b(x1644))))) ↔ t
• The critical peak s = b(c(a(a(b(x1644)))))←→_ε a(a(a(a(c(x1644))))) = t can be joined as follows.
  s ↔ b(a(a(a(b(x1644))))) ↔ a(a(a(a(b(x1644))))) ↔ a(a(a(c(b(x1644))))) ↔ t
• The critical peak s = b(c(a(a(b(x1644)))))←→_ε a(a(a(a(c(x1644))))) = t can be joined as follows.
  s ↔ b(c(a(a(a(x1644))))) ↔ a(a(a(a(a(x1644))))) ↔ t
• The critical peak s = b(c(a(a(b(x1644)))))←→_ε a(a(a(a(c(x1644))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1644))))) ↔ a(a(a(a(a(x1644))))) ↔ t
• The critical peak s = b(c(a(a(b(x1645)))))←→_ε c(a(c(a(c(x1645))))) = t can be joined as follows.
  s ↔ b(c(a(a(a(x1645))))) ↔ a(a(a(a(a(x1645))))) ↔ c(a(a(a(a(x1645))))) ↔ t
• The critical peak s = b(c(a(a(b(x1645)))))←→_ε c(a(c(a(c(x1645))))) = t can be joined as follows.
  s ↔ b(c(a(a(a(x1645))))) ↔ a(a(a(a(a(x1645))))) ↔ a(a(a(a(c(x1645))))) ↔ t
• The critical peak s = b(c(a(a(b(x1645)))))←→_ε c(a(c(a(c(x1645))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1645))))) ↔ a(a(a(a(a(x1645))))) ↔ c(a(a(a(a(x1645))))) ↔ t
• The critical peak s = b(c(a(a(b(x1645)))))←→_ε c(a(c(a(c(x1645))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1645))))) ↔ a(a(a(a(a(x1645))))) ↔ a(a(a(a(c(x1645))))) ↔ t
• The critical peak s = a(b(a(a(b(x1646)))))←→_ε a(a(a(a(c(x1646))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1646))))) ↔ a(a(a(c(b(x1646))))) ↔ t
• The critical peak s = a(b(a(a(b(x1646)))))←→_ε a(a(a(a(c(x1646))))) = t can be joined as follows.
  s ↔ a(c(a(a(b(x1646))))) ↔ a(a(a(a(b(x1646))))) ↔ a(a(a(c(b(x1646))))) ↔ t
• The critical peak s = a(b(a(a(b(x1646)))))←→_ε a(a(a(a(c(x1646))))) = t can be joined as follows.
  s ↔ a(b(a(a(a(x1646))))) ↔ a(a(a(a(a(x1646))))) ↔ t
• The critical peak s = a(b(a(a(b(x1646)))))←→_ε a(a(a(a(c(x1646))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1646))))) ↔ a(a(a(a(a(x1646))))) ↔ t
• The critical peak s = a(c(a(a(b(x1647)))))←→_ε c(a(b(a(c(x1647))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1647))))) ↔ c(a(a(a(b(x1647))))) ↔ t
• The critical peak s = a(c(a(a(b(x1647)))))←→_ε c(a(b(a(c(x1647))))) = t can be joined as follows.
  s ↔ a(a(b(a(b(x1647))))) ↔ a(a(a(a(b(x1647))))) ↔ c(a(a(a(b(x1647))))) ↔ t
• The critical peak s = a(c(a(a(b(x1647)))))←→_ε c(a(b(a(c(x1647))))) = t can be joined as follows.
  s ↔ c(b(a(a(b(x1647))))) ↔ c(a(a(a(b(x1647))))) ↔ t
• The critical peak s = a(c(a(a(b(x1647)))))←→_ε c(a(b(a(c(x1647))))) = t can be joined as follows.
  s ↔ c(b(a(a(b(x1647))))) ↔ c(a(a(a(b(x1647))))) ↔ c(a(b(c(b(x1647))))) ↔ t
• The critical peak s = a(c(a(a(b(x1647)))))←→_ε c(a(b(a(c(x1647))))) = t can be joined as follows.
  s ↔ c(c(a(a(b(x1647))))) ↔ c(a(a(a(b(x1647))))) ↔ t
• The critical peak s = a(c(a(a(b(x1647)))))←→_ε c(a(b(a(c(x1647))))) = t can be joined as follows.
  s ↔ c(c(a(a(b(x1647))))) ↔ c(a(a(a(b(x1647))))) ↔ c(a(b(c(b(x1647))))) ↔ t
• The critical peak s = c(a(a(b(x1648))))←→_ε a(a(b(c(x1648)))) = t can be joined as follows.
  s ↔ a(b(a(b(x1648)))) ↔ a(a(a(a(x1648)))) ↔ t
• The critical peak s = c(a(a(b(x1648))))←→_ε a(a(b(c(x1648)))) = t can be joined as follows.
  s ↔ a(b(a(b(x1648)))) ↔ a(a(a(a(x1648)))) ↔ a(a(a(c(x1648)))) ↔ t
• The critical peak s = c(a(a(b(x1648))))←→_ε a(a(b(c(x1648)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1648)))) ↔ a(a(a(a(x1648)))) ↔ t
• The critical peak s = c(a(a(b(x1648))))←→_ε a(a(b(c(x1648)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1648)))) ↔ a(a(a(a(x1648)))) ↔ a(a(a(c(x1648)))) ↔ t
• The critical peak s = c(a(a(b(x1648))))←→_ε a(a(b(c(x1648)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1648)))) ↔ a(a(a(a(x1648)))) ↔ t
• The critical peak s = c(a(a(b(x1648))))←→_ε a(a(b(c(x1648)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1648)))) ↔ a(a(a(a(x1648)))) ↔ a(a(a(c(x1648)))) ↔ t
• The critical peak s = a(a(a(a(x1649))))←→_ε c(b(a(a(x1649)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1649)))) ↔ a(c(a(a(x1649)))) ↔ t
• The critical peak s = a(a(a(a(x1649))))←→_ε c(b(a(a(x1649)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1649)))) ↔ c(a(a(a(x1649)))) ↔ t
• The critical peak s = a(a(a(a(x1649))))←→_ε c(b(a(a(x1649)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1649)))) ↔ a(a(b(a(x1649)))) ↔ t
• The critical peak s = a(a(a(x1650)))←→_ε a(b(a(x1650))) = t can be joined as follows.
  s ↔ a(a(a(x1650))) ↔ t
• The critical peak s = b(a(a(a(x1651))))←→_ε a(a(a(a(x1651)))) = t can be joined as follows.
  s ↔ t
• The critical peak s = b(a(a(a(a(x1652)))))←→_ε a(a(b(a(a(x1652))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1652))))) ↔ t
• The critical peak s = a(a(a(a(x1653))))←→_ε a(a(a(a(x1653)))) = t can be joined as follows.
  s ↔ t
• The critical peak s = a(c(a(a(a(x1654)))))←→_ε c(a(a(a(a(x1654))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1654))))) ↔ t
• The critical peak s = a(a(a(a(a(x1655)))))←→_ε a(a(a(a(a(x1655))))) = t can be joined as follows.
  s ↔ t
• The critical peak s = c(a(a(a(a(x1656)))))←→_ε a(a(a(a(a(x1656))))) = t can be joined as follows.
  s ↔ t
• The critical peak s = a(a(a(a(x1657))))←→_ε c(c(a(a(x1657)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1657)))) ↔ c(a(a(a(x1657)))) ↔ t
• The critical peak s = a(b(b(x1658)))←→_ε c(a(b(x1658))) = t can be joined as follows.
  s ↔ a(b(b(x1658))) ↔ t
• The critical peak s = b(a(b(b(x1659))))←→_ε a(b(a(b(x1659)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1659)))) ↔ t
• The critical peak s = a(a(b(b(x1660))))←→_ε a(a(a(b(x1660)))) = t can be joined as follows.
  s ↔ t
• The critical peak s = a(a(b(b(x1660))))←→_ε a(a(a(b(x1660)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1660)))) ↔ t
• The critical peak s = c(a(b(b(x1661))))←→_ε a(c(a(b(x1661)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1661)))) ↔ c(b(a(b(x1661)))) ↔ t
• The critical peak s = c(a(b(b(x1661))))←→_ε a(c(a(b(x1661)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1661)))) ↔ c(c(a(b(x1661)))) ↔ t
• The critical peak s = c(a(b(b(x1661))))←→_ε a(c(a(b(x1661)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1661)))) ↔ c(b(a(b(x1661)))) ↔ t
• The critical peak s = c(a(b(b(x1661))))←→_ε a(c(a(b(x1661)))) = t can be joined as follows.
  s ↔ c(a(a(b(x1661)))) ↔ c(a(a(a(x1661)))) ↔ c(b(a(b(x1661)))) ↔ t
• The critical peak s = c(a(b(b(x1661))))←→_ε a(c(a(b(x1661)))) = t can be joined as follows.
  s ↔ a(b(b(b(x1661)))) ↔ a(a(b(b(x1661)))) ↔ t
• The critical peak s = c(a(b(b(x1661))))←→_ε a(c(a(b(x1661)))) = t can be joined as follows.
  s ↔ a(b(b(b(x1661)))) ↔ a(a(b(b(x1661)))) ↔ c(b(a(b(x1661)))) ↔ t
• The critical peak s = c(a(b(b(x1661))))←→_ε a(c(a(b(x1661)))) = t can be joined as follows.
  s ↔ a(b(b(b(x1661)))) ↔ a(a(a(b(x1661)))) ↔ t
• The critical peak s = c(a(b(b(x1661))))←→_ε a(c(a(b(x1661)))) = t can be joined as follows.
  s ↔ a(b(b(b(x1661)))) ↔ a(a(a(b(x1661)))) ↔ a(a(b(b(x1661)))) ↔ t
• The critical peak s = c(a(b(b(x1661))))←→_ε a(c(a(b(x1661)))) = t can be joined as follows.
  s ↔ c(a(a(b(x1661)))) ↔ a(a(a(b(x1661)))) ↔ t
• The critical peak s = c(a(b(b(x1661))))←→_ε a(c(a(b(x1661)))) = t can be joined as follows.
  s ↔ c(a(a(b(x1661)))) ↔ a(a(a(b(x1661)))) ↔ a(a(b(b(x1661)))) ↔ t
• The critical peak s = c(a(b(b(x1661))))←→_ε a(c(a(b(x1661)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1661)))) ↔ a(a(a(a(x1661)))) ↔ a(a(b(b(x1661)))) ↔ t
• The critical peak s = c(a(b(b(x1661))))←→_ε a(c(a(b(x1661)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1661)))) ↔ a(a(a(a(x1661)))) ↔ a(c(a(a(x1661)))) ↔ t
• The critical peak s = c(a(b(b(x1661))))←→_ε a(c(a(b(x1661)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1661)))) ↔ a(a(a(a(x1661)))) ↔ a(a(a(b(x1661)))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1662))))) ↔ a(a(b(a(b(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1662))))) ↔ a(b(a(b(b(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ c(a(a(b(b(x1662))))) ↔ a(a(a(b(b(x1662))))) ↔ a(a(b(a(b(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ c(a(a(b(b(x1662))))) ↔ a(a(a(b(b(x1662))))) ↔ a(b(a(b(b(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ c(a(a(b(b(x1662))))) ↔ a(b(a(b(b(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ c(a(a(b(b(x1662))))) ↔ a(b(a(b(b(x1662))))) ↔ a(b(c(a(b(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ b(a(a(a(b(x1662))))) ↔ a(a(a(a(b(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ b(a(a(a(b(x1662))))) ↔ a(a(a(a(b(x1662))))) ↔ a(b(c(a(b(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ b(a(a(a(b(x1662))))) ↔ a(a(a(a(b(x1662))))) ↔ a(a(b(a(b(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ b(a(a(a(b(x1662))))) ↔ a(a(a(a(b(x1662))))) ↔ a(b(a(b(b(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1662))))) ↔ a(a(a(a(b(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1662))))) ↔ a(a(a(a(b(x1662))))) ↔ a(b(c(a(b(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1662))))) ↔ a(a(a(a(b(x1662))))) ↔ a(a(b(a(b(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1662))))) ↔ a(a(a(a(b(x1662))))) ↔ a(b(a(b(b(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1662))))) ↔ a(a(a(a(a(x1662))))) ↔ a(a(b(a(b(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1662))))) ↔ a(a(a(a(a(x1662))))) ↔ a(b(b(a(a(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1662))))) ↔ a(a(a(a(a(x1662))))) ↔ a(b(a(a(a(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1662))))) ↔ a(a(a(a(a(x1662))))) ↔ a(a(a(a(b(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1662))))) ↔ a(a(a(a(a(x1662))))) ↔ a(a(b(a(b(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1662))))) ↔ a(a(a(a(a(x1662))))) ↔ a(b(b(a(a(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1662))))) ↔ a(a(a(a(a(x1662))))) ↔ a(b(a(a(a(x1662))))) ↔ t
• The critical peak s = b(a(a(b(b(x1662)))))←→_ε a(b(b(a(b(x1662))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1662))))) ↔ a(a(a(a(a(x1662))))) ↔ a(a(a(a(b(x1662))))) ↔ t
• The critical peak s = a(b(b(x105)))←→_ε a(a(a(x105))) = t can be joined as follows.
  s ↔ t
• The critical peak s = b(a(a(b(b(x1664)))))←→_ε a(a(a(a(b(x1664))))) = t can be joined as follows.
  s ↔ b(a(a(a(b(x1664))))) ↔ t
• The critical peak s = b(a(a(b(b(x1664)))))←→_ε a(a(a(a(b(x1664))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1664))))) ↔ t
• The critical peak s = b(a(a(b(b(x1664)))))←→_ε a(a(a(a(b(x1664))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1664))))) ↔ a(a(a(a(a(x1664))))) ↔ t
• The critical peak s = b(a(a(b(b(x1664)))))←→_ε a(a(a(a(b(x1664))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1664))))) ↔ a(a(a(a(a(x1664))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(b(b(x1665))))) ↔ a(c(a(b(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ c(a(b(a(b(x1665))))) ↔ a(c(b(a(b(x1665))))) ↔ a(a(c(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(b(x1665))))) ↔ c(a(b(a(b(x1665))))) ↔ a(c(b(a(b(x1665))))) ↔ a(a(c(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(c(c(a(b(x1665))))) ↔ a(a(c(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(c(c(a(b(x1665))))) ↔ a(a(c(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ c(a(b(a(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(c(c(a(b(x1665))))) ↔ a(a(c(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(b(x1665))))) ↔ c(a(b(a(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(c(c(a(b(x1665))))) ↔ a(a(c(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ c(a(a(b(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(c(c(a(b(x1665))))) ↔ a(a(c(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ a(b(b(b(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ c(a(a(b(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ a(b(b(b(b(x1665))))) ↔ a(a(b(b(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ a(b(b(b(b(x1665))))) ↔ a(a(b(b(b(x1665))))) ↔ a(c(a(b(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ a(b(b(b(b(x1665))))) ↔ a(a(a(b(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ a(b(b(b(b(x1665))))) ↔ a(a(a(b(b(x1665))))) ↔ a(a(c(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ a(b(b(b(b(x1665))))) ↔ a(a(a(b(b(x1665))))) ↔ a(c(a(b(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ a(b(b(b(b(x1665))))) ↔ a(a(a(b(b(x1665))))) ↔ a(a(b(b(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ a(b(b(b(b(x1665))))) ↔ a(a(a(b(b(x1665))))) ↔ a(c(b(a(b(x1665))))) ↔ a(a(c(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ c(a(a(b(b(x1665))))) ↔ a(a(a(b(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ c(a(a(b(b(x1665))))) ↔ a(a(a(b(b(x1665))))) ↔ a(a(c(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ c(a(a(b(b(x1665))))) ↔ a(a(a(b(b(x1665))))) ↔ a(c(a(b(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ c(a(a(b(b(x1665))))) ↔ a(a(a(b(b(x1665))))) ↔ a(a(b(b(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ c(a(a(b(b(x1665))))) ↔ a(a(a(b(b(x1665))))) ↔ a(c(b(a(b(x1665))))) ↔ a(a(c(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(b(a(a(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(b(a(a(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(a(a(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(a(a(a(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(a(a(a(b(x1665))))) ↔ a(a(c(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(a(a(a(b(x1665))))) ↔ a(b(a(a(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(a(a(a(b(x1665))))) ↔ a(a(a(b(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(a(a(a(b(x1665))))) ↔ a(a(a(b(b(x1665))))) ↔ a(a(c(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(a(b(b(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(a(a(a(b(x1665))))) ↔ a(a(b(b(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(a(a(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(a(a(a(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(a(a(a(b(x1665))))) ↔ a(a(c(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(a(a(a(b(x1665))))) ↔ a(b(a(a(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(a(a(a(b(x1665))))) ↔ a(a(a(b(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(a(a(a(b(x1665))))) ↔ a(a(a(b(b(x1665))))) ↔ a(a(c(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(b(x1665))))) ↔ c(a(a(a(b(x1665))))) ↔ a(a(a(a(b(x1665))))) ↔ a(a(b(b(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1665))))) ↔ c(a(a(a(a(x1665))))) ↔ a(b(a(a(a(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1665))))) ↔ c(a(a(a(a(x1665))))) ↔ a(b(a(a(a(x1665))))) ↔ a(b(c(a(a(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1665))))) ↔ c(a(a(a(a(x1665))))) ↔ a(b(a(a(a(x1665))))) ↔ a(b(a(a(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1665))))) ↔ c(a(a(a(a(x1665))))) ↔ a(b(a(a(a(x1665))))) ↔ a(b(a(b(a(x1665))))) ↔ a(b(c(a(a(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1665))))) ↔ c(a(a(a(a(x1665))))) ↔ a(a(a(a(a(x1665))))) ↔ a(b(c(a(a(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1665))))) ↔ c(a(a(a(a(x1665))))) ↔ a(a(a(a(a(x1665))))) ↔ a(a(a(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1665))))) ↔ c(a(a(a(a(x1665))))) ↔ a(a(a(a(a(x1665))))) ↔ a(a(a(a(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1665))))) ↔ c(a(a(a(a(x1665))))) ↔ a(a(a(a(a(x1665))))) ↔ a(a(a(a(b(x1665))))) ↔ a(a(c(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1665))))) ↔ c(a(a(a(a(x1665))))) ↔ a(a(a(a(a(x1665))))) ↔ a(a(a(b(b(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1665))))) ↔ c(a(a(a(a(x1665))))) ↔ a(a(a(a(a(x1665))))) ↔ a(a(a(b(b(x1665))))) ↔ a(a(c(a(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1665))))) ↔ c(a(a(a(a(x1665))))) ↔ a(a(a(a(a(x1665))))) ↔ a(b(a(a(a(x1665))))) ↔ a(b(a(b(b(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1665))))) ↔ c(a(a(a(a(x1665))))) ↔ a(a(a(a(a(x1665))))) ↔ a(b(a(a(a(x1665))))) ↔ a(b(c(a(a(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1665))))) ↔ c(a(a(a(a(x1665))))) ↔ a(a(a(a(a(x1665))))) ↔ a(b(a(b(a(x1665))))) ↔ a(b(c(a(a(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1665))))) ↔ c(a(a(a(a(x1665))))) ↔ a(a(a(a(a(x1665))))) ↔ a(a(c(a(a(x1665))))) ↔ a(b(c(a(a(x1665))))) ↔ t
• The critical peak s = c(c(a(b(b(x1665)))))←→_ε a(b(c(a(b(x1665))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1665))))) ↔ c(a(a(a(a(x1665))))) ↔ a(a(a(a(a(x1665))))) ↔ a(a(c(a(a(x1665))))) ↔ a(a(c(a(b(x1665))))) ↔ t
• The critical peak s = b(c(a(b(b(x1666)))))←→_ε a(a(a(a(b(x1666))))) = t can be joined as follows.
  s ↔ b(c(a(a(b(x1666))))) ↔ t
• The critical peak s = b(c(a(b(b(x1666)))))←→_ε a(a(a(a(b(x1666))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1666))))) ↔ t
• The critical peak s = b(c(a(b(b(x1666)))))←→_ε a(a(a(a(b(x1666))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1666))))) ↔ a(a(a(a(a(x1666))))) ↔ t
• The critical peak s = b(c(a(b(b(x1666)))))←→_ε a(a(a(a(b(x1666))))) = t can be joined as follows.
  s ↔ b(c(a(a(a(x1666))))) ↔ a(a(a(a(a(x1666))))) ↔ t
• The critical peak s = b(c(a(b(b(x1667)))))←→_ε c(a(c(a(b(x1667))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1667))))) ↔ c(a(a(b(b(x1667))))) ↔ t
• The critical peak s = b(c(a(b(b(x1667)))))←→_ε c(a(c(a(b(x1667))))) = t can be joined as follows.
  s ↔ b(a(b(b(b(x1667))))) ↔ a(a(a(b(b(x1667))))) ↔ c(a(a(b(b(x1667))))) ↔ t
• The critical peak s = b(c(a(b(b(x1667)))))←→_ε c(a(c(a(b(x1667))))) = t can be joined as follows.
  s ↔ b(c(a(a(b(x1667))))) ↔ a(a(a(a(b(x1667))))) ↔ t
• The critical peak s = b(c(a(b(b(x1667)))))←→_ε c(a(c(a(b(x1667))))) = t can be joined as follows.
  s ↔ b(c(a(a(b(x1667))))) ↔ a(a(a(a(b(x1667))))) ↔ a(b(c(a(b(x1667))))) ↔ t
• The critical peak s = b(c(a(b(b(x1667)))))←→_ε c(a(c(a(b(x1667))))) = t can be joined as follows.
  s ↔ b(c(a(a(b(x1667))))) ↔ a(a(a(a(b(x1667))))) ↔ c(a(a(a(b(x1667))))) ↔ t
• The critical peak s = b(c(a(b(b(x1667)))))←→_ε c(a(c(a(b(x1667))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1667))))) ↔ a(a(a(a(b(x1667))))) ↔ t
• The critical peak s = b(c(a(b(b(x1667)))))←→_ε c(a(c(a(b(x1667))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1667))))) ↔ a(a(a(a(b(x1667))))) ↔ a(b(c(a(b(x1667))))) ↔ t
• The critical peak s = b(c(a(b(b(x1667)))))←→_ε c(a(c(a(b(x1667))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1667))))) ↔ a(a(a(a(b(x1667))))) ↔ c(a(a(a(b(x1667))))) ↔ t
• The critical peak s = b(c(a(b(b(x1667)))))←→_ε c(a(c(a(b(x1667))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1667))))) ↔ a(a(a(a(a(x1667))))) ↔ c(a(c(a(a(x1667))))) ↔ t
• The critical peak s = b(c(a(b(b(x1667)))))←→_ε c(a(c(a(b(x1667))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1667))))) ↔ a(a(a(a(a(x1667))))) ↔ a(a(a(a(b(x1667))))) ↔ t
• The critical peak s = b(c(a(b(b(x1667)))))←→_ε c(a(c(a(b(x1667))))) = t can be joined as follows.
  s ↔ b(c(a(a(a(x1667))))) ↔ a(a(a(a(a(x1667))))) ↔ c(a(c(a(a(x1667))))) ↔ t
• The critical peak s = b(c(a(b(b(x1667)))))←→_ε c(a(c(a(b(x1667))))) = t can be joined as follows.
  s ↔ b(c(a(a(a(x1667))))) ↔ a(a(a(a(a(x1667))))) ↔ a(a(a(a(b(x1667))))) ↔ t
• The critical peak s = a(b(a(b(b(x1668)))))←→_ε a(a(a(a(b(x1668))))) = t can be joined as follows.
  s ↔ t
• The critical peak s = a(c(a(b(b(x1669)))))←→_ε c(a(b(a(b(x1669))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1669))))) ↔ c(a(a(b(b(x1669))))) ↔ t
• The critical peak s = a(c(a(b(b(x1669)))))←→_ε c(a(b(a(b(x1669))))) = t can be joined as follows.
  s ↔ a(a(b(b(b(x1669))))) ↔ a(a(a(b(b(x1669))))) ↔ c(a(a(b(b(x1669))))) ↔ t
• The critical peak s = a(c(a(b(b(x1669)))))←→_ε c(a(b(a(b(x1669))))) = t can be joined as follows.
  s ↔ c(b(a(b(b(x1669))))) ↔ c(a(a(a(b(x1669))))) ↔ t
• The critical peak s = a(c(a(b(b(x1669)))))←→_ε c(a(b(a(b(x1669))))) = t can be joined as follows.
  s ↔ c(b(a(b(b(x1669))))) ↔ c(a(a(a(b(x1669))))) ↔ c(a(c(a(b(x1669))))) ↔ t
• The critical peak s = a(c(a(b(b(x1669)))))←→_ε c(a(b(a(b(x1669))))) = t can be joined as follows.
  s ↔ c(b(a(b(b(x1669))))) ↔ c(a(a(a(b(x1669))))) ↔ c(a(a(b(b(x1669))))) ↔ t
• The critical peak s = a(c(a(b(b(x1669)))))←→_ε c(a(b(a(b(x1669))))) = t can be joined as follows.
  s ↔ a(a(b(b(b(x1669))))) ↔ a(a(b(a(b(x1669))))) ↔ a(b(b(a(b(x1669))))) ↔ t
• The critical peak s = a(c(a(b(b(x1669)))))←→_ε c(a(b(a(b(x1669))))) = t can be joined as follows.
  s ↔ a(c(a(a(b(x1669))))) ↔ a(a(b(a(b(x1669))))) ↔ a(b(b(a(b(x1669))))) ↔ t
• The critical peak s = a(c(a(b(b(x1669)))))←→_ε c(a(b(a(b(x1669))))) = t can be joined as follows.
  s ↔ a(a(b(b(b(x1669))))) ↔ a(a(a(a(b(x1669))))) ↔ c(a(c(a(b(x1669))))) ↔ t
• The critical peak s = a(c(a(b(b(x1669)))))←→_ε c(a(b(a(b(x1669))))) = t can be joined as follows.
  s ↔ a(a(b(b(b(x1669))))) ↔ a(a(a(a(b(x1669))))) ↔ a(b(b(a(b(x1669))))) ↔ t
• The critical peak s = a(c(a(b(b(x1669)))))←→_ε c(a(b(a(b(x1669))))) = t can be joined as follows.
  s ↔ a(a(b(b(b(x1669))))) ↔ a(a(a(a(b(x1669))))) ↔ c(a(a(a(b(x1669))))) ↔ t
• The critical peak s = a(c(a(b(b(x1669)))))←→_ε c(a(b(a(b(x1669))))) = t can be joined as follows.
  s ↔ a(c(a(a(b(x1669))))) ↔ a(a(a(a(b(x1669))))) ↔ c(a(c(a(b(x1669))))) ↔ t
• The critical peak s = a(c(a(b(b(x1669)))))←→_ε c(a(b(a(b(x1669))))) = t can be joined as follows.
  s ↔ a(c(a(a(b(x1669))))) ↔ a(a(a(a(b(x1669))))) ↔ a(b(b(a(b(x1669))))) ↔ t
• The critical peak s = a(c(a(b(b(x1669)))))←→_ε c(a(b(a(b(x1669))))) = t can be joined as follows.
  s ↔ a(c(a(a(b(x1669))))) ↔ a(a(a(a(b(x1669))))) ↔ c(a(a(a(b(x1669))))) ↔ t
• The critical peak s = a(c(a(b(b(x1669)))))←→_ε c(a(b(a(b(x1669))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1669))))) ↔ a(a(a(a(b(x1669))))) ↔ c(a(c(a(b(x1669))))) ↔ t
• The critical peak s = a(c(a(b(b(x1669)))))←→_ε c(a(b(a(b(x1669))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1669))))) ↔ a(a(a(a(b(x1669))))) ↔ a(b(b(a(b(x1669))))) ↔ t
• The critical peak s = a(c(a(b(b(x1669)))))←→_ε c(a(b(a(b(x1669))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1669))))) ↔ a(a(a(a(b(x1669))))) ↔ c(a(a(a(b(x1669))))) ↔ t
• The critical peak s = a(c(a(b(b(x1669)))))←→_ε c(a(b(a(b(x1669))))) = t can be joined as follows.
  s ↔ a(a(a(b(b(x1669))))) ↔ a(a(a(a(a(x1669))))) ↔ c(a(a(a(a(x1669))))) ↔ t
• The critical peak s = a(c(a(b(b(x1669)))))←→_ε c(a(b(a(b(x1669))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1669))))) ↔ a(a(a(a(a(x1669))))) ↔ c(a(a(a(a(x1669))))) ↔ t
• The critical peak s = c(a(b(b(x1670))))←→_ε a(a(b(b(x1670)))) = t can be joined as follows.
  s ↔ a(b(b(b(x1670)))) ↔ t
• The critical peak s = c(a(b(b(x1670))))←→_ε a(a(b(b(x1670)))) = t can be joined as follows.
  s ↔ a(b(b(b(x1670)))) ↔ a(a(a(b(x1670)))) ↔ t
• The critical peak s = c(a(b(b(x1670))))←→_ε a(a(b(b(x1670)))) = t can be joined as follows.
  s ↔ c(a(a(b(x1670)))) ↔ a(a(a(b(x1670)))) ↔ t
• The critical peak s = c(a(b(b(x1670))))←→_ε a(a(b(b(x1670)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1670)))) ↔ a(a(a(a(x1670)))) ↔ t
• The critical peak s = c(a(b(b(x1670))))←→_ε a(a(b(b(x1670)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1670)))) ↔ a(a(a(a(x1670)))) ↔ a(a(a(b(x1670)))) ↔ t
• The critical peak s = a(a(a(x1671)))←→_ε c(a(b(x1671))) = t can be joined as follows.
  s ↔ a(a(a(x1671))) ↔ a(b(b(x1671))) ↔ t
• The critical peak s = a(a(a(x1671)))←→_ε c(a(b(x1671))) = t can be joined as follows.
  s ↔ a(a(a(x1671))) ↔ c(a(a(x1671))) ↔ t
• The critical peak s = b(a(a(a(x1672))))←→_ε a(b(a(b(x1672)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1672)))) ↔ t
• The critical peak s = a(a(a(a(x1673))))←→_ε a(a(a(b(x1673)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1673)))) ↔ t
• The critical peak s = c(a(a(a(x1674))))←→_ε a(c(a(b(x1674)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1674)))) ↔ c(b(a(b(x1674)))) ↔ t
• The critical peak s = c(a(a(a(x1674))))←→_ε a(c(a(b(x1674)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1674)))) ↔ a(a(b(b(x1674)))) ↔ t
• The critical peak s = c(a(a(a(x1674))))←→_ε a(c(a(b(x1674)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1674)))) ↔ a(c(a(a(x1674)))) ↔ t
• The critical peak s = c(a(a(a(x1674))))←→_ε a(c(a(b(x1674)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1674)))) ↔ a(a(a(b(x1674)))) ↔ t
• The critical peak s = c(a(a(a(x1674))))←→_ε a(c(a(b(x1674)))) = t can be joined as follows.
  s ↔ a(b(a(a(x1674)))) ↔ a(a(a(a(x1674)))) ↔ a(a(b(b(x1674)))) ↔ t
• The critical peak s = c(a(a(a(x1674))))←→_ε a(c(a(b(x1674)))) = t can be joined as follows.
  s ↔ a(b(a(a(x1674)))) ↔ a(a(a(a(x1674)))) ↔ a(c(a(a(x1674)))) ↔ t
• The critical peak s = c(a(a(a(x1674))))←→_ε a(c(a(b(x1674)))) = t can be joined as follows.
  s ↔ a(b(a(a(x1674)))) ↔ a(a(a(a(x1674)))) ↔ a(a(a(b(x1674)))) ↔ t
• The critical peak s = c(a(a(a(x1674))))←→_ε a(c(a(b(x1674)))) = t can be joined as follows.
  s ↔ a(b(a(a(x1674)))) ↔ a(c(a(a(x1674)))) ↔ t
• The critical peak s = a(a(a(x106)))←→_ε a(b(b(x106))) = t can be joined as follows.
  s ↔ a(a(a(x106))) ↔ t
• The critical peak s = b(a(a(a(a(x1676)))))←→_ε a(b(b(a(b(x1676))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1676))))) ↔ a(a(b(a(b(x1676))))) ↔ t
• The critical peak s = b(a(a(a(a(x1676)))))←→_ε a(b(b(a(b(x1676))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1676))))) ↔ a(b(b(a(a(x1676))))) ↔ t
• The critical peak s = b(a(a(a(a(x1676)))))←→_ε a(b(b(a(b(x1676))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1676))))) ↔ a(b(a(a(a(x1676))))) ↔ t
• The critical peak s = b(a(a(a(a(x1676)))))←→_ε a(b(b(a(b(x1676))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1676))))) ↔ a(a(a(a(b(x1676))))) ↔ t
• The critical peak s = b(a(a(a(a(x1676)))))←→_ε a(b(b(a(b(x1676))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1676))))) ↔ a(a(a(a(a(x1676))))) ↔ a(a(b(a(b(x1676))))) ↔ t
• The critical peak s = b(a(a(a(a(x1676)))))←→_ε a(b(b(a(b(x1676))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1676))))) ↔ a(a(a(a(a(x1676))))) ↔ a(b(b(a(a(x1676))))) ↔ t
• The critical peak s = b(a(a(a(a(x1676)))))←→_ε a(b(b(a(b(x1676))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1676))))) ↔ a(a(a(a(a(x1676))))) ↔ a(b(a(a(a(x1676))))) ↔ t
• The critical peak s = b(a(a(a(a(x1676)))))←→_ε a(b(b(a(b(x1676))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1676))))) ↔ a(a(a(a(a(x1676))))) ↔ a(a(a(a(b(x1676))))) ↔ t
• The critical peak s = b(a(a(a(a(x1676)))))←→_ε a(b(b(a(b(x1676))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1676))))) ↔ a(b(a(a(a(x1676))))) ↔ t
• The critical peak s = b(a(a(a(a(x1676)))))←→_ε a(b(b(a(b(x1676))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1676))))) ↔ a(b(a(a(a(x1676))))) ↔ a(b(b(a(a(x1676))))) ↔ t
• The critical peak s = b(a(a(a(a(x1676)))))←→_ε a(b(b(a(b(x1676))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1676))))) ↔ a(b(a(a(a(x1676))))) ↔ a(b(a(b(b(x1676))))) ↔ t
• The critical peak s = b(a(a(a(a(x1677)))))←→_ε a(a(a(a(b(x1677))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1677))))) ↔ t
• The critical peak s = c(c(a(a(a(x1678)))))←→_ε a(b(c(a(b(x1678))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1678))))) ↔ a(b(a(a(a(x1678))))) ↔ a(b(a(b(b(x1678))))) ↔ t
• The critical peak s = c(c(a(a(a(x1678)))))←→_ε a(b(c(a(b(x1678))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1678))))) ↔ a(b(a(a(a(x1678))))) ↔ a(b(c(a(a(x1678))))) ↔ t
• The critical peak s = c(c(a(a(a(x1678)))))←→_ε a(b(c(a(b(x1678))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1678))))) ↔ a(a(a(a(a(x1678))))) ↔ a(b(c(a(a(x1678))))) ↔ t
• The critical peak s = c(c(a(a(a(x1678)))))←→_ε a(b(c(a(b(x1678))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1678))))) ↔ a(a(a(a(a(x1678))))) ↔ a(a(a(a(b(x1678))))) ↔ t
• The critical peak s = b(c(a(a(a(x1679)))))←→_ε a(a(a(a(b(x1679))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1679))))) ↔ t
• The critical peak s = b(c(a(a(a(x1680)))))←→_ε c(a(c(a(b(x1680))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1680))))) ↔ c(a(c(a(a(x1680))))) ↔ t
• The critical peak s = b(c(a(a(a(x1680)))))←→_ε c(a(c(a(b(x1680))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1680))))) ↔ a(a(a(a(b(x1680))))) ↔ t
• The critical peak s = b(c(a(a(a(x1680)))))←→_ε c(a(c(a(b(x1680))))) = t can be joined as follows.
  s ↔ b(a(b(a(a(x1680))))) ↔ a(a(a(a(a(x1680))))) ↔ c(a(c(a(a(x1680))))) ↔ t
• The critical peak s = b(c(a(a(a(x1680)))))←→_ε c(a(c(a(b(x1680))))) = t can be joined as follows.
  s ↔ b(a(b(a(a(x1680))))) ↔ a(a(a(a(a(x1680))))) ↔ a(a(a(a(b(x1680))))) ↔ t
• The critical peak s = b(c(a(a(a(x1680)))))←→_ε c(a(c(a(b(x1680))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1680))))) ↔ a(a(a(a(a(x1680))))) ↔ c(a(c(a(a(x1680))))) ↔ t
• The critical peak s = b(c(a(a(a(x1680)))))←→_ε c(a(c(a(b(x1680))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1680))))) ↔ a(a(a(a(a(x1680))))) ↔ a(a(a(a(b(x1680))))) ↔ t
• The critical peak s = b(c(a(a(a(x1680)))))←→_ε c(a(c(a(b(x1680))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1680))))) ↔ c(a(a(a(a(x1680))))) ↔ c(a(a(b(b(x1680))))) ↔ t
• The critical peak s = b(c(a(a(a(x1680)))))←→_ε c(a(c(a(b(x1680))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1680))))) ↔ c(a(a(a(a(x1680))))) ↔ c(a(c(a(a(x1680))))) ↔ t
• The critical peak s = b(c(a(a(a(x1680)))))←→_ε c(a(c(a(b(x1680))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1680))))) ↔ c(a(a(a(a(x1680))))) ↔ c(a(a(a(b(x1680))))) ↔ t
• The critical peak s = a(b(a(a(a(x1681)))))←→_ε a(a(a(a(b(x1681))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1681))))) ↔ t
• The critical peak s = a(c(a(a(a(x1682)))))←→_ε c(a(b(a(b(x1682))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1682))))) ↔ c(a(a(a(a(x1682))))) ↔ t
• The critical peak s = a(c(a(a(a(x1682)))))←→_ε c(a(b(a(b(x1682))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1682))))) ↔ a(a(a(a(a(x1682))))) ↔ c(a(a(a(a(x1682))))) ↔ t
• The critical peak s = a(c(a(a(a(x1682)))))←→_ε c(a(b(a(b(x1682))))) = t can be joined as follows.
  s ↔ c(b(a(a(a(x1682))))) ↔ c(a(a(a(a(x1682))))) ↔ t
• The critical peak s = a(c(a(a(a(x1682)))))←→_ε c(a(b(a(b(x1682))))) = t can be joined as follows.
  s ↔ c(b(a(a(a(x1682))))) ↔ c(a(a(a(a(x1682))))) ↔ c(a(b(a(a(x1682))))) ↔ t
• The critical peak s = a(c(a(a(a(x1682)))))←→_ε c(a(b(a(b(x1682))))) = t can be joined as follows.
  s ↔ c(b(a(a(a(x1682))))) ↔ c(a(a(a(a(x1682))))) ↔ c(a(a(a(b(x1682))))) ↔ t
• The critical peak s = a(c(a(a(a(x1682)))))←→_ε c(a(b(a(b(x1682))))) = t can be joined as follows.
  s ↔ c(b(a(a(a(x1682))))) ↔ c(a(a(a(a(x1682))))) ↔ c(a(a(b(b(x1682))))) ↔ t
• The critical peak s = a(c(a(a(a(x1682)))))←→_ε c(a(b(a(b(x1682))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1682))))) ↔ c(a(a(a(a(x1682))))) ↔ t
• The critical peak s = a(c(a(a(a(x1682)))))←→_ε c(a(b(a(b(x1682))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1682))))) ↔ c(a(a(a(a(x1682))))) ↔ c(a(b(a(a(x1682))))) ↔ t
• The critical peak s = a(c(a(a(a(x1682)))))←→_ε c(a(b(a(b(x1682))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1682))))) ↔ c(a(a(a(a(x1682))))) ↔ c(a(a(a(b(x1682))))) ↔ t
• The critical peak s = a(c(a(a(a(x1682)))))←→_ε c(a(b(a(b(x1682))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1682))))) ↔ c(a(a(a(a(x1682))))) ↔ c(a(a(b(b(x1682))))) ↔ t
• The critical peak s = a(c(a(a(a(x1682)))))←→_ε c(a(b(a(b(x1682))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1682))))) ↔ c(a(b(a(a(x1682))))) ↔ t
• The critical peak s = c(a(a(a(x1683))))←→_ε a(a(b(b(x1683)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1683)))) ↔ t
• The critical peak s = a(a(b(c(x1684))))←→_ε c(b(c(b(x1684)))) = t can be joined as follows.
  s ↔ a(a(b(c(x1684)))) ↔ c(b(a(c(x1684)))) ↔ t
• The critical peak s = a(a(b(c(x1684))))←→_ε c(b(c(b(x1684)))) = t can be joined as follows.
  s ↔ a(a(b(c(x1684)))) ↔ a(c(c(b(x1684)))) ↔ t
• The critical peak s = a(a(b(c(x1684))))←→_ε c(b(c(b(x1684)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1684)))) ↔ c(a(a(a(x1684)))) ↔ t
• The critical peak s = a(a(b(c(x1684))))←→_ε c(b(c(b(x1684)))) = t can be joined as follows.
  s ↔ a(a(a(c(x1684)))) ↔ a(a(a(a(x1684)))) ↔ c(a(a(a(x1684)))) ↔ t
• The critical peak s = b(a(b(c(x1685))))←→_ε a(a(c(b(x1685)))) = t can be joined as follows.
  s ↔ a(a(a(c(x1685)))) ↔ t
• The critical peak s = b(a(a(b(c(x1686)))))←→_ε a(a(b(c(b(x1686))))) = t can be joined as follows.
  s ↔ a(a(a(b(c(x1686))))) ↔ a(a(c(a(c(x1686))))) ↔ t
• The critical peak s = b(a(a(b(c(x1686)))))←→_ε a(a(b(c(b(x1686))))) = t can be joined as follows.
  s ↔ c(a(a(b(c(x1686))))) ↔ a(a(a(b(c(x1686))))) ↔ a(a(c(a(c(x1686))))) ↔ t
• The critical peak s = b(a(a(b(c(x1686)))))←→_ε a(a(b(c(b(x1686))))) = t can be joined as follows.
  s ↔ b(a(a(a(c(x1686))))) ↔ a(a(a(a(c(x1686))))) ↔ a(a(a(c(b(x1686))))) ↔ t
• The critical peak s = b(a(a(b(c(x1686)))))←→_ε a(a(b(c(b(x1686))))) = t can be joined as follows.
  s ↔ b(a(a(a(c(x1686))))) ↔ a(a(a(a(c(x1686))))) ↔ a(a(b(a(c(x1686))))) ↔ t
• The critical peak s = b(a(a(b(c(x1686)))))←→_ε a(a(b(c(b(x1686))))) = t can be joined as follows.
  s ↔ b(a(a(a(c(x1686))))) ↔ a(a(a(a(c(x1686))))) ↔ a(a(c(a(c(x1686))))) ↔ t
• The critical peak s = b(a(a(b(c(x1686)))))←→_ε a(a(b(c(b(x1686))))) = t can be joined as follows.
  s ↔ a(a(a(b(c(x1686))))) ↔ a(a(a(a(c(x1686))))) ↔ a(a(a(c(b(x1686))))) ↔ t
• The critical peak s = b(a(a(b(c(x1686)))))←→_ε a(a(b(c(b(x1686))))) = t can be joined as follows.
  s ↔ a(a(a(b(c(x1686))))) ↔ a(a(a(a(c(x1686))))) ↔ a(a(b(a(c(x1686))))) ↔ t
• The critical peak s = b(a(a(b(c(x1686)))))←→_ε a(a(b(c(b(x1686))))) = t can be joined as follows.
  s ↔ a(a(a(b(c(x1686))))) ↔ a(a(a(a(c(x1686))))) ↔ a(a(c(a(c(x1686))))) ↔ t
• The critical peak s = b(a(a(b(c(x1686)))))←→_ε a(a(b(c(b(x1686))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1686))))) ↔ a(a(a(a(a(x1686))))) ↔ t
• The critical peak s = b(a(a(b(c(x1686)))))←→_ε a(a(b(c(b(x1686))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1686))))) ↔ a(a(a(a(a(x1686))))) ↔ a(a(a(a(b(x1686))))) ↔ t
• The critical peak s = b(a(a(b(c(x1686)))))←→_ε a(a(b(c(b(x1686))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1686))))) ↔ a(a(a(a(a(x1686))))) ↔ a(a(c(a(c(x1686))))) ↔ t
• The critical peak s = b(a(a(b(c(x1686)))))←→_ε a(a(b(c(b(x1686))))) = t can be joined as follows.
  s ↔ a(a(a(b(c(x1686))))) ↔ a(a(a(a(a(x1686))))) ↔ t
• The critical peak s = b(a(a(b(c(x1686)))))←→_ε a(a(b(c(b(x1686))))) = t can be joined as follows.
  s ↔ a(a(a(b(c(x1686))))) ↔ a(a(a(a(a(x1686))))) ↔ a(a(a(a(b(x1686))))) ↔ t
• The critical peak s = b(a(a(b(c(x1686)))))←→_ε a(a(b(c(b(x1686))))) = t can be joined as follows.
  s ↔ a(a(a(b(c(x1686))))) ↔ a(a(a(a(a(x1686))))) ↔ a(a(c(a(c(x1686))))) ↔ t
• The critical peak s = a(a(b(c(x1687))))←→_ε c(a(a(b(x1687)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1687)))) ↔ a(b(a(b(x1687)))) ↔ t
• The critical peak s = a(a(b(c(x1687))))←→_ε c(a(a(b(x1687)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1687)))) ↔ c(a(a(a(x1687)))) ↔ t
• The critical peak s = a(a(b(c(x1687))))←→_ε c(a(a(b(x1687)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1687)))) ↔ a(a(a(b(x1687)))) ↔ t
• The critical peak s = a(a(b(c(x1687))))←→_ε c(a(a(b(x1687)))) = t can be joined as follows.
  s ↔ a(a(a(c(x1687)))) ↔ a(a(a(a(x1687)))) ↔ a(b(a(b(x1687)))) ↔ t
• The critical peak s = a(a(b(c(x1687))))←→_ε c(a(a(b(x1687)))) = t can be joined as follows.
  s ↔ a(a(a(c(x1687)))) ↔ a(a(a(a(x1687)))) ↔ c(a(a(a(x1687)))) ↔ t
• The critical peak s = a(a(b(c(x1687))))←→_ε c(a(a(b(x1687)))) = t can be joined as follows.
  s ↔ a(a(a(c(x1687)))) ↔ a(a(a(a(x1687)))) ↔ a(a(a(b(x1687)))) ↔ t
• The critical peak s = a(c(a(b(c(x1688)))))←→_ε c(a(a(c(b(x1688))))) = t can be joined as follows.
  s ↔ c(b(a(b(c(x1688))))) ↔ c(a(a(a(c(x1688))))) ↔ t
• The critical peak s = a(c(a(b(c(x1688)))))←→_ε c(a(a(c(b(x1688))))) = t can be joined as follows.
  s ↔ a(a(b(b(c(x1688))))) ↔ a(a(a(a(c(x1688))))) ↔ c(a(a(a(c(x1688))))) ↔ t
• The critical peak s = a(c(a(b(c(x1688)))))←→_ε c(a(a(c(b(x1688))))) = t can be joined as follows.
  s ↔ a(a(b(b(c(x1688))))) ↔ a(a(a(a(c(x1688))))) ↔ a(a(a(c(b(x1688))))) ↔ t
• The critical peak s = a(c(a(b(c(x1688)))))←→_ε c(a(a(c(b(x1688))))) = t can be joined as follows.
  s ↔ a(c(a(a(c(x1688))))) ↔ a(a(a(a(c(x1688))))) ↔ c(a(a(a(c(x1688))))) ↔ t
• The critical peak s = a(c(a(b(c(x1688)))))←→_ε c(a(a(c(b(x1688))))) = t can be joined as follows.
  s ↔ a(c(a(a(c(x1688))))) ↔ a(a(a(a(c(x1688))))) ↔ a(a(a(c(b(x1688))))) ↔ t
• The critical peak s = a(c(a(b(c(x1688)))))←→_ε c(a(a(c(b(x1688))))) = t can be joined as follows.
  s ↔ a(a(a(b(c(x1688))))) ↔ a(a(a(a(c(x1688))))) ↔ c(a(a(a(c(x1688))))) ↔ t
• The critical peak s = a(c(a(b(c(x1688)))))←→_ε c(a(a(c(b(x1688))))) = t can be joined as follows.
  s ↔ a(a(a(b(c(x1688))))) ↔ a(a(a(a(c(x1688))))) ↔ a(a(a(c(b(x1688))))) ↔ t
• The critical peak s = a(c(a(b(c(x1688)))))←→_ε c(a(a(c(b(x1688))))) = t can be joined as follows.
  s ↔ a(c(a(a(c(x1688))))) ↔ a(c(a(c(b(x1688))))) ↔ a(b(a(c(b(x1688))))) ↔ t
• The critical peak s = a(a(a(b(c(x1689)))))←→_ε a(a(a(c(b(x1689))))) = t can be joined as follows.
  s ↔ a(a(a(a(c(x1689))))) ↔ t
• The critical peak s = c(a(a(b(c(x1690)))))←→_ε a(a(a(c(b(x1690))))) = t can be joined as follows.
  s ↔ a(b(a(b(c(x1690))))) ↔ a(a(a(a(c(x1690))))) ↔ t
• The critical peak s = c(a(a(b(c(x1690)))))←→_ε a(a(a(c(b(x1690))))) = t can be joined as follows.
  s ↔ c(a(a(a(c(x1690))))) ↔ a(a(a(a(c(x1690))))) ↔ t
• The critical peak s = c(a(a(b(c(x1690)))))←→_ε a(a(a(c(b(x1690))))) = t can be joined as follows.
  s ↔ a(a(a(b(c(x1690))))) ↔ a(a(a(a(c(x1690))))) ↔ t
• The critical peak s = c(a(a(b(c(x1690)))))←→_ε a(a(a(c(b(x1690))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1690))))) ↔ a(a(a(a(a(x1690))))) ↔ a(a(a(a(c(x1690))))) ↔ t
• The critical peak s = c(a(a(b(c(x1690)))))←→_ε a(a(a(c(b(x1690))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1690))))) ↔ a(a(a(a(a(x1690))))) ↔ a(a(a(a(b(x1690))))) ↔ t
• The critical peak s = c(a(a(b(c(x1690)))))←→_ε a(a(a(c(b(x1690))))) = t can be joined as follows.
  s ↔ a(a(a(b(c(x1690))))) ↔ a(a(a(a(a(x1690))))) ↔ a(a(a(a(c(x1690))))) ↔ t
• The critical peak s = c(a(a(b(c(x1690)))))←→_ε a(a(a(c(b(x1690))))) = t can be joined as follows.
  s ↔ a(a(a(b(c(x1690))))) ↔ a(a(a(a(a(x1690))))) ↔ a(a(a(a(b(x1690))))) ↔ t
• The critical peak s = b(a(a(a(x1691))))←→_ε a(b(c(b(x1691)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1691)))) ↔ t
• The critical peak s = a(a(a(a(x1692))))←→_ε a(a(c(b(x1692)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1692)))) ↔ a(a(a(c(x1692)))) ↔ t
• The critical peak s = a(a(a(a(x1692))))←→_ε a(a(c(b(x1692)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1692)))) ↔ a(a(a(b(x1692)))) ↔ t
• The critical peak s = c(a(a(a(x1693))))←→_ε a(c(c(b(x1693)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1693)))) ↔ c(b(c(b(x1693)))) ↔ t
• The critical peak s = c(a(a(a(x1693))))←→_ε a(c(c(b(x1693)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1693)))) ↔ c(a(a(b(x1693)))) ↔ t
• The critical peak s = c(a(a(a(x1693))))←→_ε a(c(c(b(x1693)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1693)))) ↔ a(c(a(c(x1693)))) ↔ t
• The critical peak s = c(a(a(a(x1693))))←→_ε a(c(c(b(x1693)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1693)))) ↔ a(a(b(c(x1693)))) ↔ t
• The critical peak s = c(a(a(a(x1693))))←→_ε a(c(c(b(x1693)))) = t can be joined as follows.
  s ↔ a(b(a(a(x1693)))) ↔ a(a(a(a(x1693)))) ↔ a(c(a(c(x1693)))) ↔ t
• The critical peak s = c(a(a(a(x1693))))←→_ε a(c(c(b(x1693)))) = t can be joined as follows.
  s ↔ a(b(a(a(x1693)))) ↔ a(a(a(a(x1693)))) ↔ a(a(b(c(x1693)))) ↔ t
• The critical peak s = a(a(a(x1694)))←→_ε a(a(b(x1694))) = t can be joined as follows.
  s ↔ a(a(a(x1694))) ↔ t
• The critical peak s = b(a(a(a(a(x1695)))))←→_ε a(b(b(c(b(x1695))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1695))))) ↔ a(a(b(c(b(x1695))))) ↔ t
• The critical peak s = b(a(a(a(a(x1695)))))←→_ε a(b(b(c(b(x1695))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1695))))) ↔ a(b(a(a(a(x1695))))) ↔ t
• The critical peak s = b(a(a(a(a(x1695)))))←→_ε a(b(b(c(b(x1695))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1695))))) ↔ a(a(a(a(a(x1695))))) ↔ a(a(b(c(b(x1695))))) ↔ t
• The critical peak s = b(a(a(a(a(x1695)))))←→_ε a(b(b(c(b(x1695))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1695))))) ↔ a(a(a(a(a(x1695))))) ↔ a(b(a(a(a(x1695))))) ↔ t
• The critical peak s = b(a(a(a(a(x1695)))))←→_ε a(b(b(c(b(x1695))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1695))))) ↔ a(b(a(a(a(x1695))))) ↔ t
• The critical peak s = b(a(a(a(a(x1695)))))←→_ε a(b(b(c(b(x1695))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1695))))) ↔ a(b(a(a(a(x1695))))) ↔ a(b(a(a(b(x1695))))) ↔ t
• The critical peak s = b(a(a(a(a(x1695)))))←→_ε a(b(b(c(b(x1695))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1695))))) ↔ a(b(a(a(a(x1695))))) ↔ a(b(c(a(c(x1695))))) ↔ t
• The critical peak s = b(a(a(a(a(x1696)))))←→_ε a(a(a(c(b(x1696))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1696))))) ↔ a(a(a(a(c(x1696))))) ↔ t
• The critical peak s = b(a(a(a(a(x1696)))))←→_ε a(a(a(c(b(x1696))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1696))))) ↔ a(a(a(a(b(x1696))))) ↔ t
• The critical peak s = b(a(a(a(a(x1696)))))←→_ε a(a(a(c(b(x1696))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1696))))) ↔ a(a(a(a(a(x1696))))) ↔ a(a(a(a(c(x1696))))) ↔ t
• The critical peak s = b(a(a(a(a(x1696)))))←→_ε a(a(a(c(b(x1696))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1696))))) ↔ a(a(a(a(a(x1696))))) ↔ a(a(a(a(b(x1696))))) ↔ t
• The critical peak s = c(c(a(a(a(x1697)))))←→_ε a(b(c(c(b(x1697))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1697))))) ↔ a(b(a(a(a(x1697))))) ↔ a(b(c(a(c(x1697))))) ↔ t
• The critical peak s = c(c(a(a(a(x1697)))))←→_ε a(b(c(c(b(x1697))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1697))))) ↔ a(b(a(a(a(x1697))))) ↔ a(b(a(b(c(x1697))))) ↔ t
• The critical peak s = b(c(a(a(a(x1698)))))←→_ε a(a(a(c(b(x1698))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1698))))) ↔ a(a(a(a(c(x1698))))) ↔ t
• The critical peak s = b(c(a(a(a(x1698)))))←→_ε a(a(a(c(b(x1698))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1698))))) ↔ a(a(a(a(b(x1698))))) ↔ t
• The critical peak s = b(c(a(a(a(x1698)))))←→_ε a(a(a(c(b(x1698))))) = t can be joined as follows.
  s ↔ b(a(b(a(a(x1698))))) ↔ a(a(a(a(a(x1698))))) ↔ a(a(a(a(c(x1698))))) ↔ t
• The critical peak s = b(c(a(a(a(x1698)))))←→_ε a(a(a(c(b(x1698))))) = t can be joined as follows.
  s ↔ b(a(b(a(a(x1698))))) ↔ a(a(a(a(a(x1698))))) ↔ a(a(a(a(b(x1698))))) ↔ t
• The critical peak s = b(c(a(a(a(x1698)))))←→_ε a(a(a(c(b(x1698))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1698))))) ↔ a(a(a(a(a(x1698))))) ↔ a(a(a(a(c(x1698))))) ↔ t
• The critical peak s = b(c(a(a(a(x1698)))))←→_ε a(a(a(c(b(x1698))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1698))))) ↔ a(a(a(a(a(x1698))))) ↔ a(a(a(a(b(x1698))))) ↔ t
• The critical peak s = a(a(a(x102)))←→_ε c(a(c(x102))) = t can be joined as follows.
  s ↔ a(a(a(x102))) ↔ t
• The critical peak s = b(c(a(a(a(x1700)))))←→_ε c(a(c(c(b(x1700))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1700))))) ↔ c(a(a(a(a(x1700))))) ↔ c(a(c(a(c(x1700))))) ↔ t
• The critical peak s = b(c(a(a(a(x1700)))))←→_ε c(a(c(c(b(x1700))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1700))))) ↔ c(a(a(a(a(x1700))))) ↔ c(a(a(b(c(x1700))))) ↔ t
• The critical peak s = a(b(a(a(a(x1701)))))←→_ε a(a(a(c(b(x1701))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1701))))) ↔ a(a(a(a(c(x1701))))) ↔ t
• The critical peak s = a(b(a(a(a(x1701)))))←→_ε a(a(a(c(b(x1701))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1701))))) ↔ a(a(a(a(b(x1701))))) ↔ t
• The critical peak s = a(b(a(a(a(x1701)))))←→_ε a(a(a(c(b(x1701))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1701))))) ↔ a(a(a(a(a(x1701))))) ↔ a(a(a(a(c(x1701))))) ↔ t
• The critical peak s = a(b(a(a(a(x1701)))))←→_ε a(a(a(c(b(x1701))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1701))))) ↔ a(a(a(a(a(x1701))))) ↔ a(a(a(a(b(x1701))))) ↔ t
• The critical peak s = a(c(a(a(a(x1702)))))←→_ε c(a(b(c(b(x1702))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1702))))) ↔ c(a(a(a(a(x1702))))) ↔ t
• The critical peak s = a(c(a(a(a(x1702)))))←→_ε c(a(b(c(b(x1702))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1702))))) ↔ a(a(a(a(a(x1702))))) ↔ c(a(a(a(a(x1702))))) ↔ t
• The critical peak s = a(c(a(a(a(x1702)))))←→_ε c(a(b(c(b(x1702))))) = t can be joined as follows.
  s ↔ c(b(a(a(a(x1702))))) ↔ c(a(a(a(a(x1702))))) ↔ t
• The critical peak s = a(c(a(a(a(x1702)))))←→_ε c(a(b(c(b(x1702))))) = t can be joined as follows.
  s ↔ c(b(a(a(a(x1702))))) ↔ c(a(a(a(a(x1702))))) ↔ c(a(a(a(b(x1702))))) ↔ t
• The critical peak s = a(c(a(a(a(x1702)))))←→_ε c(a(b(c(b(x1702))))) = t can be joined as follows.
  s ↔ c(b(a(a(a(x1702))))) ↔ c(a(a(a(a(x1702))))) ↔ c(a(c(a(c(x1702))))) ↔ t
• The critical peak s = a(c(a(a(a(x1702)))))←→_ε c(a(b(c(b(x1702))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1702))))) ↔ c(a(a(a(a(x1702))))) ↔ t
• The critical peak s = a(c(a(a(a(x1702)))))←→_ε c(a(b(c(b(x1702))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1702))))) ↔ c(a(a(a(a(x1702))))) ↔ c(a(a(a(b(x1702))))) ↔ t
• The critical peak s = a(c(a(a(a(x1702)))))←→_ε c(a(b(c(b(x1702))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1702))))) ↔ c(a(a(a(a(x1702))))) ↔ c(a(c(a(c(x1702))))) ↔ t
• The critical peak s = b(c(a(c(x1703))))←→_ε a(b(c(b(x1703)))) = t can be joined as follows.
  s ↔ a(a(a(c(x1703)))) ↔ a(a(c(b(x1703)))) ↔ t
• The critical peak s = b(c(a(c(x1703))))←→_ε a(b(c(b(x1703)))) = t can be joined as follows.
  s ↔ a(a(a(c(x1703)))) ↔ a(b(a(c(x1703)))) ↔ t
• The critical peak s = b(c(a(c(x1703))))←→_ε a(b(c(b(x1703)))) = t can be joined as follows.
  s ↔ a(a(a(c(x1703)))) ↔ a(c(a(c(x1703)))) ↔ t
• The critical peak s = b(c(a(c(x1703))))←→_ε a(b(c(b(x1703)))) = t can be joined as follows.
  s ↔ b(a(b(c(x1703)))) ↔ a(a(a(c(x1703)))) ↔ a(a(c(b(x1703)))) ↔ t
• The critical peak s = b(c(a(c(x1703))))←→_ε a(b(c(b(x1703)))) = t can be joined as follows.
  s ↔ b(a(b(c(x1703)))) ↔ a(a(a(c(x1703)))) ↔ a(b(a(c(x1703)))) ↔ t
• The critical peak s = b(c(a(c(x1703))))←→_ε a(b(c(b(x1703)))) = t can be joined as follows.
  s ↔ b(a(b(c(x1703)))) ↔ a(a(a(c(x1703)))) ↔ a(c(a(c(x1703)))) ↔ t
• The critical peak s = b(c(a(c(x1703))))←→_ε a(b(c(b(x1703)))) = t can be joined as follows.
  s ↔ b(c(c(b(x1703)))) ↔ a(a(c(b(x1703)))) ↔ t
• The critical peak s = b(c(a(c(x1703))))←→_ε a(b(c(b(x1703)))) = t can be joined as follows.
  s ↔ a(a(a(c(x1703)))) ↔ a(a(c(b(x1703)))) ↔ t
• The critical peak s = b(c(a(c(x1703))))←→_ε a(b(c(b(x1703)))) = t can be joined as follows.
  s ↔ a(a(a(c(x1703)))) ↔ a(a(a(a(x1703)))) ↔ t
• The critical peak s = b(c(a(c(x1703))))←→_ε a(b(c(b(x1703)))) = t can be joined as follows.
  s ↔ a(a(a(c(x1703)))) ↔ a(a(a(a(x1703)))) ↔ a(a(a(b(x1703)))) ↔ t
• The critical peak s = b(c(a(c(x1703))))←→_ε a(b(c(b(x1703)))) = t can be joined as follows.
  s ↔ a(a(a(c(x1703)))) ↔ a(a(a(a(x1703)))) ↔ a(c(a(c(x1703)))) ↔ t
• The critical peak s = b(c(a(c(x1703))))←→_ε a(b(c(b(x1703)))) = t can be joined as follows.
  s ↔ b(a(a(a(x1703)))) ↔ a(a(a(a(x1703)))) ↔ t
• The critical peak s = b(c(a(c(x1703))))←→_ε a(b(c(b(x1703)))) = t can be joined as follows.
  s ↔ b(a(a(a(x1703)))) ↔ a(a(a(a(x1703)))) ↔ a(a(a(b(x1703)))) ↔ t
• The critical peak s = b(c(a(c(x1703))))←→_ε a(b(c(b(x1703)))) = t can be joined as follows.
  s ↔ b(a(a(a(x1703)))) ↔ a(a(a(a(x1703)))) ↔ a(c(a(c(x1703)))) ↔ t
• The critical peak s = a(c(a(c(x1704))))←→_ε a(a(c(b(x1704)))) = t can be joined as follows.
  s ↔ a(a(a(c(x1704)))) ↔ t
• The critical peak s = c(c(a(c(x1705))))←→_ε a(c(c(b(x1705)))) = t can be joined as follows.
  s ↔ c(c(a(c(x1705)))) ↔ c(b(c(b(x1705)))) ↔ t
• The critical peak s = c(c(a(c(x1705))))←→_ε a(c(c(b(x1705)))) = t can be joined as follows.
  s ↔ c(c(a(c(x1705)))) ↔ a(c(a(c(x1705)))) ↔ t
• The critical peak s = c(c(a(c(x1705))))←→_ε a(c(c(b(x1705)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1705)))) ↔ c(b(c(b(x1705)))) ↔ t
• The critical peak s = c(c(a(c(x1705))))←→_ε a(c(c(b(x1705)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1705)))) ↔ c(a(a(b(x1705)))) ↔ t
• The critical peak s = c(c(a(c(x1705))))←→_ε a(c(c(b(x1705)))) = t can be joined as follows.
  s ↔ c(a(b(c(x1705)))) ↔ c(a(a(a(x1705)))) ↔ c(b(c(b(x1705)))) ↔ t
• The critical peak s = c(c(a(c(x1705))))←→_ε a(c(c(b(x1705)))) = t can be joined as follows.
  s ↔ c(a(b(c(x1705)))) ↔ c(a(a(a(x1705)))) ↔ c(a(a(b(x1705)))) ↔ t
• The critical peak s = c(c(a(c(x1705))))←→_ε a(c(c(b(x1705)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1705)))) ↔ a(a(a(a(x1705)))) ↔ a(c(a(c(x1705)))) ↔ t
• The critical peak s = c(c(a(c(x1705))))←→_ε a(c(c(b(x1705)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1705)))) ↔ a(a(a(a(x1705)))) ↔ a(a(b(c(x1705)))) ↔ t
• The critical peak s = c(a(c(x1706)))←→_ε a(a(b(x1706))) = t can be joined as follows.
  s ↔ a(a(a(x1706))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ a(a(b(a(c(x1707))))) ↔ a(a(b(c(b(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ a(a(b(a(c(x1707))))) ↔ a(b(b(a(c(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ b(c(b(a(c(x1707))))) ↔ a(a(b(a(c(x1707))))) ↔ a(a(b(c(b(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ b(c(b(a(c(x1707))))) ↔ a(a(b(a(c(x1707))))) ↔ a(b(b(a(c(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ c(a(c(a(c(x1707))))) ↔ a(b(c(a(c(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ c(a(c(a(c(x1707))))) ↔ a(b(c(a(c(x1707))))) ↔ a(b(b(a(c(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ c(a(c(a(c(x1707))))) ↔ a(a(a(a(c(x1707))))) ↔ a(b(b(a(c(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ c(a(c(a(c(x1707))))) ↔ a(a(a(a(c(x1707))))) ↔ a(b(c(a(c(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ c(a(c(a(c(x1707))))) ↔ a(a(a(a(c(x1707))))) ↔ a(a(a(c(b(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ b(c(b(a(c(x1707))))) ↔ a(a(a(a(c(x1707))))) ↔ a(b(b(a(c(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ b(c(b(a(c(x1707))))) ↔ a(a(a(a(c(x1707))))) ↔ a(b(c(a(c(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ b(c(b(a(c(x1707))))) ↔ a(a(a(a(c(x1707))))) ↔ a(a(a(c(b(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ a(a(b(a(c(x1707))))) ↔ a(a(a(a(c(x1707))))) ↔ a(b(b(a(c(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ a(a(b(a(c(x1707))))) ↔ a(a(a(a(c(x1707))))) ↔ a(b(c(a(c(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ a(a(b(a(c(x1707))))) ↔ a(a(a(a(c(x1707))))) ↔ a(a(a(c(b(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ b(a(a(a(c(x1707))))) ↔ a(a(a(a(c(x1707))))) ↔ a(b(b(a(c(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ b(a(a(a(c(x1707))))) ↔ a(a(a(a(c(x1707))))) ↔ a(b(c(a(c(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ b(a(a(a(c(x1707))))) ↔ a(a(a(a(c(x1707))))) ↔ a(a(a(c(b(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ b(a(c(c(b(x1707))))) ↔ a(a(b(c(b(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ a(a(b(a(c(x1707))))) ↔ a(a(b(c(b(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ a(a(b(a(c(x1707))))) ↔ a(a(c(a(c(x1707))))) ↔ a(a(b(c(b(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ a(a(b(a(c(x1707))))) ↔ a(a(c(a(c(x1707))))) ↔ a(b(c(a(c(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ b(c(c(a(c(x1707))))) ↔ a(a(c(a(c(x1707))))) ↔ a(a(b(c(b(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ b(c(c(a(c(x1707))))) ↔ a(a(c(a(c(x1707))))) ↔ a(b(c(a(c(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ a(a(b(a(c(x1707))))) ↔ a(a(a(a(b(x1707))))) ↔ a(a(b(c(b(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ a(a(b(a(c(x1707))))) ↔ a(a(a(a(b(x1707))))) ↔ a(b(a(a(b(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ a(a(b(a(c(x1707))))) ↔ a(a(a(a(b(x1707))))) ↔ a(a(a(c(b(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1707))))) ↔ a(a(a(a(a(x1707))))) ↔ a(a(b(c(b(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1707)))))←→_ε a(b(b(c(b(x1707))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1707))))) ↔ a(a(a(a(a(x1707))))) ↔ a(b(a(a(a(x1707))))) ↔ t
• The critical peak s = b(a(c(a(c(x1708)))))←→_ε a(a(a(c(b(x1708))))) = t can be joined as follows.
  s ↔ c(a(c(a(c(x1708))))) ↔ a(a(a(a(c(x1708))))) ↔ t
• The critical peak s = b(a(c(a(c(x1708)))))←→_ε a(a(a(c(b(x1708))))) = t can be joined as follows.
  s ↔ b(c(b(a(c(x1708))))) ↔ a(a(a(a(c(x1708))))) ↔ t
• The critical peak s = b(a(c(a(c(x1708)))))←→_ε a(a(a(c(b(x1708))))) = t can be joined as follows.
  s ↔ a(a(b(a(c(x1708))))) ↔ a(a(a(a(c(x1708))))) ↔ t
• The critical peak s = b(a(c(a(c(x1708)))))←→_ε a(a(a(c(b(x1708))))) = t can be joined as follows.
  s ↔ b(a(a(a(c(x1708))))) ↔ a(a(a(a(c(x1708))))) ↔ t
• The critical peak s = b(a(c(a(c(x1708)))))←→_ε a(a(a(c(b(x1708))))) = t can be joined as follows.
  s ↔ a(a(b(a(c(x1708))))) ↔ a(a(a(a(b(x1708))))) ↔ t
• The critical peak s = b(a(c(a(c(x1708)))))←→_ε a(a(a(c(b(x1708))))) = t can be joined as follows.
  s ↔ a(a(b(a(c(x1708))))) ↔ a(a(a(a(b(x1708))))) ↔ a(a(c(a(b(x1708))))) ↔ t
• The critical peak s = b(a(c(a(c(x1708)))))←→_ε a(a(a(c(b(x1708))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1708))))) ↔ a(a(a(a(a(x1708))))) ↔ a(a(a(a(c(x1708))))) ↔ t
• The critical peak s = b(a(c(a(c(x1708)))))←→_ε a(a(a(c(b(x1708))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1708))))) ↔ a(a(a(a(a(x1708))))) ↔ a(a(a(a(b(x1708))))) ↔ t
• The critical peak s = c(c(c(a(c(x1709)))))←→_ε a(b(c(c(b(x1709))))) = t can be joined as follows.
  s ↔ c(c(a(b(c(x1709))))) ↔ a(c(a(b(c(x1709))))) ↔ a(b(a(b(c(x1709))))) ↔ t
• The critical peak s = c(c(c(a(c(x1709)))))←→_ε a(b(c(c(b(x1709))))) = t can be joined as follows.
  s ↔ c(c(c(c(b(x1709))))) ↔ c(c(a(b(c(x1709))))) ↔ a(c(a(b(c(x1709))))) ↔ a(b(a(b(c(x1709))))) ↔ t
• The critical peak s = c(c(c(a(c(x1709)))))←→_ε a(b(c(c(b(x1709))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1709))))) ↔ c(a(a(a(a(x1709))))) ↔ a(b(a(a(a(x1709))))) ↔ a(b(c(a(c(x1709))))) ↔ t
• The critical peak s = c(c(c(a(c(x1709)))))←→_ε a(b(c(c(b(x1709))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1709))))) ↔ c(a(a(a(a(x1709))))) ↔ a(b(a(a(a(x1709))))) ↔ a(b(a(b(c(x1709))))) ↔ t
• The critical peak s = c(c(c(a(c(x1709)))))←→_ε a(b(c(c(b(x1709))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1709))))) ↔ c(a(a(a(a(x1709))))) ↔ a(b(a(a(a(x1709))))) ↔ a(b(a(b(c(x1709))))) ↔ a(b(c(a(c(x1709))))) ↔ t
• The critical peak s = c(c(c(a(c(x1709)))))←→_ε a(b(c(c(b(x1709))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1709))))) ↔ c(a(a(a(a(x1709))))) ↔ a(b(a(a(a(x1709))))) ↔ a(b(a(a(c(x1709))))) ↔ a(b(a(b(c(x1709))))) ↔ t
• The critical peak s = c(c(c(a(c(x1709)))))←→_ε a(b(c(c(b(x1709))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1709))))) ↔ c(a(a(a(a(x1709))))) ↔ a(a(a(a(a(x1709))))) ↔ a(a(c(a(c(x1709))))) ↔ a(a(c(c(b(x1709))))) ↔ t
• The critical peak s = c(c(c(a(c(x1709)))))←→_ε a(b(c(c(b(x1709))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1709))))) ↔ c(a(a(a(a(x1709))))) ↔ a(a(a(a(a(x1709))))) ↔ a(a(c(a(c(x1709))))) ↔ a(b(c(a(c(x1709))))) ↔ t
• The critical peak s = c(c(c(a(c(x1709)))))←→_ε a(b(c(c(b(x1709))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1709))))) ↔ c(a(a(a(a(x1709))))) ↔ a(a(a(a(a(x1709))))) ↔ a(a(a(b(c(x1709))))) ↔ a(a(c(c(b(x1709))))) ↔ t
• The critical peak s = c(c(c(a(c(x1709)))))←→_ε a(b(c(c(b(x1709))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1709))))) ↔ c(a(a(a(a(x1709))))) ↔ a(a(a(a(a(x1709))))) ↔ a(a(a(b(c(x1709))))) ↔ a(b(a(b(c(x1709))))) ↔ t
• The critical peak s = c(c(c(a(c(x1709)))))←→_ε a(b(c(c(b(x1709))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1709))))) ↔ c(a(a(a(a(x1709))))) ↔ a(a(a(a(a(x1709))))) ↔ a(a(a(a(c(x1709))))) ↔ a(b(c(a(c(x1709))))) ↔ t
• The critical peak s = c(c(c(a(c(x1709)))))←→_ε a(b(c(c(b(x1709))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1709))))) ↔ c(a(a(a(a(x1709))))) ↔ a(a(a(a(a(x1709))))) ↔ a(a(a(a(c(x1709))))) ↔ a(a(a(c(b(x1709))))) ↔ t
• The critical peak s = c(c(c(a(c(x1709)))))←→_ε a(b(c(c(b(x1709))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1709))))) ↔ c(a(a(a(a(x1709))))) ↔ a(a(a(a(a(x1709))))) ↔ a(a(a(a(c(x1709))))) ↔ a(b(a(b(c(x1709))))) ↔ t
• The critical peak s = c(c(c(a(c(x1709)))))←→_ε a(b(c(c(b(x1709))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1709))))) ↔ c(a(a(a(a(x1709))))) ↔ a(a(a(a(a(x1709))))) ↔ a(b(a(a(a(x1709))))) ↔ a(b(c(a(c(x1709))))) ↔ t
• The critical peak s = c(c(c(a(c(x1709)))))←→_ε a(b(c(c(b(x1709))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1709))))) ↔ c(a(a(a(a(x1709))))) ↔ a(a(a(a(a(x1709))))) ↔ a(b(a(a(a(x1709))))) ↔ a(b(a(b(c(x1709))))) ↔ t
• The critical peak s = c(c(c(a(c(x1709)))))←→_ε a(b(c(c(b(x1709))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1709))))) ↔ c(a(a(a(a(x1709))))) ↔ a(a(a(a(a(x1709))))) ↔ a(a(a(a(b(x1709))))) ↔ a(a(a(c(b(x1709))))) ↔ t
• The critical peak s = c(a(c(x102)))←→_ε a(a(a(x102))) = t can be joined as follows.
  s ↔ t
• The critical peak s = b(c(c(a(c(x1711)))))←→_ε a(a(a(c(b(x1711))))) = t can be joined as follows.
  s ↔ a(a(c(a(c(x1711))))) ↔ a(a(a(a(c(x1711))))) ↔ t
• The critical peak s = b(c(c(a(c(x1711)))))←→_ε a(a(a(c(b(x1711))))) = t can be joined as follows.
  s ↔ a(a(c(a(c(x1711))))) ↔ a(a(a(a(a(x1711))))) ↔ a(a(a(a(c(x1711))))) ↔ t
• The critical peak s = b(c(c(a(c(x1711)))))←→_ε a(a(a(c(b(x1711))))) = t can be joined as follows.
  s ↔ a(a(c(a(c(x1711))))) ↔ a(a(a(a(a(x1711))))) ↔ a(a(a(a(b(x1711))))) ↔ t
• The critical peak s = b(c(c(a(c(x1711)))))←→_ε a(a(a(c(b(x1711))))) = t can be joined as follows.
  s ↔ b(c(a(a(a(x1711))))) ↔ a(a(a(a(a(x1711))))) ↔ a(a(a(a(c(x1711))))) ↔ t
• The critical peak s = b(c(c(a(c(x1711)))))←→_ε a(a(a(c(b(x1711))))) = t can be joined as follows.
  s ↔ b(c(a(a(a(x1711))))) ↔ a(a(a(a(a(x1711))))) ↔ a(a(a(a(b(x1711))))) ↔ t
• The critical peak s = b(c(c(a(c(x1712)))))←→_ε c(a(c(c(b(x1712))))) = t can be joined as follows.
  s ↔ b(c(c(c(b(x1712))))) ↔ a(a(c(c(b(x1712))))) ↔ a(b(c(c(b(x1712))))) ↔ t
• The critical peak s = b(c(c(a(c(x1712)))))←→_ε c(a(c(c(b(x1712))))) = t can be joined as follows.
  s ↔ a(a(c(a(c(x1712))))) ↔ a(a(c(c(b(x1712))))) ↔ a(b(c(c(b(x1712))))) ↔ t
• The critical peak s = b(c(c(a(c(x1712)))))←→_ε c(a(c(c(b(x1712))))) = t can be joined as follows.
  s ↔ b(c(a(b(c(x1712))))) ↔ a(a(a(b(c(x1712))))) ↔ c(a(a(b(c(x1712))))) ↔ t
• The critical peak s = b(c(c(a(c(x1712)))))←→_ε c(a(c(c(b(x1712))))) = t can be joined as follows.
  s ↔ a(a(c(a(c(x1712))))) ↔ a(a(a(b(c(x1712))))) ↔ c(a(a(b(c(x1712))))) ↔ t
• The critical peak s = b(c(c(a(c(x1712)))))←→_ε c(a(c(c(b(x1712))))) = t can be joined as follows.
  s ↔ a(a(c(a(c(x1712))))) ↔ a(a(a(a(c(x1712))))) ↔ c(a(c(a(c(x1712))))) ↔ t
• The critical peak s = b(c(c(a(c(x1712)))))←→_ε c(a(c(c(b(x1712))))) = t can be joined as follows.
  s ↔ a(a(c(a(c(x1712))))) ↔ a(a(a(a(c(x1712))))) ↔ a(a(a(c(b(x1712))))) ↔ t
• The critical peak s = a(b(c(a(c(x1713)))))←→_ε a(a(a(c(b(x1713))))) = t can be joined as follows.
  s ↔ a(a(a(a(c(x1713))))) ↔ t
• The critical peak s = a(c(c(a(c(x1714)))))←→_ε c(a(b(c(b(x1714))))) = t can be joined as follows.
  s ↔ c(a(a(a(c(x1714))))) ↔ c(a(a(c(b(x1714))))) ↔ t
• The critical peak s = a(c(c(a(c(x1714)))))←→_ε c(a(b(c(b(x1714))))) = t can be joined as follows.
  s ↔ c(a(a(a(c(x1714))))) ↔ c(a(b(a(c(x1714))))) ↔ t
• The critical peak s = a(c(c(a(c(x1714)))))←→_ε c(a(b(c(b(x1714))))) = t can be joined as follows.
  s ↔ c(a(a(a(c(x1714))))) ↔ c(a(c(a(c(x1714))))) ↔ t
• The critical peak s = a(c(c(a(c(x1714)))))←→_ε c(a(b(c(b(x1714))))) = t can be joined as follows.
  s ↔ c(b(c(a(c(x1714))))) ↔ c(a(a(a(c(x1714))))) ↔ c(a(a(c(b(x1714))))) ↔ t
• The critical peak s = a(c(c(a(c(x1714)))))←→_ε c(a(b(c(b(x1714))))) = t can be joined as follows.
  s ↔ c(b(c(a(c(x1714))))) ↔ c(a(a(a(c(x1714))))) ↔ c(a(b(a(c(x1714))))) ↔ t
• The critical peak s = a(c(c(a(c(x1714)))))←→_ε c(a(b(c(b(x1714))))) = t can be joined as follows.
  s ↔ c(b(c(a(c(x1714))))) ↔ c(a(a(a(c(x1714))))) ↔ c(a(c(a(c(x1714))))) ↔ t
• The critical peak s = a(c(c(a(c(x1714)))))←→_ε c(a(b(c(b(x1714))))) = t can be joined as follows.
  s ↔ a(c(c(c(b(x1714))))) ↔ c(a(a(c(b(x1714))))) ↔ t
• The critical peak s = a(c(c(a(c(x1714)))))←→_ε c(a(b(c(b(x1714))))) = t can be joined as follows.
  s ↔ c(a(a(a(c(x1714))))) ↔ c(a(a(c(b(x1714))))) ↔ t
• The critical peak s = a(c(c(a(c(x1714)))))←→_ε c(a(b(c(b(x1714))))) = t can be joined as follows.
  s ↔ c(a(a(a(c(x1714))))) ↔ a(a(a(a(c(x1714))))) ↔ c(a(c(a(c(x1714))))) ↔ t
• The critical peak s = a(c(c(a(c(x1714)))))←→_ε c(a(b(c(b(x1714))))) = t can be joined as follows.
  s ↔ c(a(a(a(c(x1714))))) ↔ c(a(a(a(a(x1714))))) ↔ t
• The critical peak s = a(c(c(a(c(x1714)))))←→_ε c(a(b(c(b(x1714))))) = t can be joined as follows.
  s ↔ c(a(a(a(c(x1714))))) ↔ c(a(a(a(a(x1714))))) ↔ c(a(a(a(b(x1714))))) ↔ t
• The critical peak s = a(c(c(a(c(x1714)))))←→_ε c(a(b(c(b(x1714))))) = t can be joined as follows.
  s ↔ c(a(a(a(c(x1714))))) ↔ c(a(a(a(a(x1714))))) ↔ c(a(c(a(c(x1714))))) ↔ t
• The critical peak s = a(c(c(a(c(x1714)))))←→_ε c(a(b(c(b(x1714))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1714))))) ↔ a(a(a(a(a(x1714))))) ↔ c(a(a(a(a(x1714))))) ↔ t
• The critical peak s = b(a(a(a(x1715))))←→_ε c(a(c(a(x1715)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1715)))) ↔ t
• The critical peak s = b(a(a(a(x1715))))←→_ε c(a(c(a(x1715)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1715)))) ↔ t
• The critical peak s = a(a(a(x1716)))←→_ε c(b(a(x1716))) = t can be joined as follows.
  s ↔ a(a(a(x1716))) ↔ a(c(a(x1716))) ↔ t
• The critical peak s = a(a(a(x1716)))←→_ε c(b(a(x1716))) = t can be joined as follows.
  s ↔ a(a(a(x1716))) ↔ a(a(b(x1716))) ↔ t
• The critical peak s = c(a(a(a(x1717))))←→_ε a(b(c(a(x1717)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1717)))) ↔ t
• The critical peak s = b(a(a(a(a(x1718)))))←→_ε a(a(a(c(a(x1718))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1718))))) ↔ t
• The critical peak s = b(a(a(a(x1719))))←→_ε a(a(b(a(x1719)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1719)))) ↔ t
• The critical peak s = c(a(a(a(a(x1720)))))←→_ε a(a(a(c(a(x1720))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1720))))) ↔ t
• The critical peak s = a(c(a(a(a(x1721)))))←→_ε a(a(a(c(a(x1721))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1721))))) ↔ t
• The critical peak s = a(a(a(a(x1722))))←→_ε a(a(a(a(x1722)))) = t can be joined as follows.
  s ↔ t
• The critical peak s = c(b(a(a(a(x1723)))))←→_ε a(a(b(c(a(x1723))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1723))))) ↔ a(a(b(a(b(x1723))))) ↔ t
• The critical peak s = c(b(a(a(a(x1723)))))←→_ε a(a(b(c(a(x1723))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1723))))) ↔ a(a(b(a(a(x1723))))) ↔ a(a(b(a(b(x1723))))) ↔ t
• The critical peak s = c(b(a(a(a(x1723)))))←→_ε a(a(b(c(a(x1723))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1723))))) ↔ a(a(a(a(a(x1723))))) ↔ t
• The critical peak s = c(b(a(a(a(x1723)))))←→_ε a(a(b(c(a(x1723))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1723))))) ↔ a(a(a(a(a(x1723))))) ↔ a(a(b(a(b(x1723))))) ↔ t
• The critical peak s = c(b(a(a(a(x1723)))))←→_ε a(a(b(c(a(x1723))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1723))))) ↔ a(a(a(a(a(x1723))))) ↔ a(a(a(c(a(x1723))))) ↔ t
• The critical peak s = c(b(a(a(a(x1723)))))←→_ε a(a(b(c(a(x1723))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1723))))) ↔ a(a(a(a(a(x1723))))) ↔ t
• The critical peak s = c(b(a(a(a(x1723)))))←→_ε a(a(b(c(a(x1723))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1723))))) ↔ a(a(a(a(a(x1723))))) ↔ a(a(b(a(b(x1723))))) ↔ t
• The critical peak s = c(b(a(a(a(x1723)))))←→_ε a(a(b(c(a(x1723))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1723))))) ↔ a(a(a(a(a(x1723))))) ↔ a(a(a(c(a(x1723))))) ↔ t
• The critical peak s = c(b(a(a(a(x1723)))))←→_ε a(a(b(c(a(x1723))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1723))))) ↔ a(a(a(a(a(x1723))))) ↔ t
• The critical peak s = c(b(a(a(a(x1723)))))←→_ε a(a(b(c(a(x1723))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1723))))) ↔ a(a(a(a(a(x1723))))) ↔ a(a(b(a(b(x1723))))) ↔ t
• The critical peak s = c(b(a(a(a(x1723)))))←→_ε a(a(b(c(a(x1723))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1723))))) ↔ a(a(a(a(a(x1723))))) ↔ a(a(a(c(a(x1723))))) ↔ t
• The critical peak s = c(a(a(a(x1724))))←→_ε a(a(a(a(x1724)))) = t can be joined as follows.
  s ↔ t
• The critical peak s = a(a(a(x101)))←→_ε c(c(a(x101))) = t can be joined as follows.
  s ↔ a(a(a(x101))) ↔ a(b(b(x101))) ↔ c(a(b(x101))) ↔ t
• The critical peak s = a(a(a(x101)))←→_ε c(c(a(x101))) = t can be joined as follows.
  s ↔ a(a(a(x101))) ↔ c(a(a(x101))) ↔ c(a(b(x101))) ↔ t
• The critical peak s = a(c(a(a(a(x1726)))))←→_ε c(c(a(c(a(x1726))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1726))))) ↔ t
• The critical peak s = b(c(a(a(x1727))))←→_ε c(a(c(c(x1727)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1727)))) ↔ a(a(a(c(x1727)))) ↔ t
• The critical peak s = b(c(a(a(x1727))))←→_ε c(a(c(c(x1727)))) = t can be joined as follows.
  s ↔ b(a(b(a(x1727)))) ↔ a(a(a(a(x1727)))) ↔ a(a(a(c(x1727)))) ↔ t
• The critical peak s = b(c(a(a(x1727))))←→_ε c(a(c(c(x1727)))) = t can be joined as follows.
  s ↔ b(a(a(a(x1727)))) ↔ a(a(a(a(x1727)))) ↔ a(a(a(c(x1727)))) ↔ t
• The critical peak s = b(c(a(a(x1727))))←→_ε c(a(c(c(x1727)))) = t can be joined as follows.
  s ↔ b(a(b(a(x1727)))) ↔ c(a(b(a(x1727)))) ↔ c(c(a(a(x1727)))) ↔ t
• The critical peak s = b(c(a(a(x1727))))←→_ε c(a(c(c(x1727)))) = t can be joined as follows.
  s ↔ b(a(a(a(x1727)))) ↔ c(a(a(a(x1727)))) ↔ c(c(a(a(x1727)))) ↔ t
• The critical peak s = c(a(a(x1728)))←→_ε c(b(c(x1728))) = t can be joined as follows.
  s ↔ c(a(a(x1728))) ↔ t
• The critical peak s = c(c(a(a(x1729))))←→_ε a(b(c(c(x1729)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1729)))) ↔ a(a(a(a(x1729)))) ↔ a(a(a(c(x1729)))) ↔ t
• The critical peak s = b(a(c(a(a(x1730)))))←→_ε a(a(a(c(c(x1730))))) = t can be joined as follows.
  s ↔ c(a(c(a(a(x1730))))) ↔ a(a(a(a(a(x1730))))) ↔ a(a(c(a(a(x1730))))) ↔ t
• The critical peak s = b(a(c(a(a(x1730)))))←→_ε a(a(a(c(c(x1730))))) = t can be joined as follows.
  s ↔ c(a(c(a(a(x1730))))) ↔ a(a(a(a(a(x1730))))) ↔ a(a(a(a(c(x1730))))) ↔ t
• The critical peak s = b(a(c(a(a(x1730)))))←→_ε a(a(a(c(c(x1730))))) = t can be joined as follows.
  s ↔ b(c(b(a(a(x1730))))) ↔ a(a(a(a(a(x1730))))) ↔ a(a(c(a(a(x1730))))) ↔ t
• The critical peak s = b(a(c(a(a(x1730)))))←→_ε a(a(a(c(c(x1730))))) = t can be joined as follows.
  s ↔ b(c(b(a(a(x1730))))) ↔ a(a(a(a(a(x1730))))) ↔ a(a(a(a(c(x1730))))) ↔ t
• The critical peak s = b(a(c(a(a(x1730)))))←→_ε a(a(a(c(c(x1730))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1730))))) ↔ a(a(a(a(a(x1730))))) ↔ a(a(c(a(a(x1730))))) ↔ t
• The critical peak s = b(a(c(a(a(x1730)))))←→_ε a(a(a(c(c(x1730))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1730))))) ↔ a(a(a(a(a(x1730))))) ↔ a(a(a(a(c(x1730))))) ↔ t
• The critical peak s = b(a(c(a(a(x1730)))))←→_ε a(a(a(c(c(x1730))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1730))))) ↔ a(a(a(a(a(x1730))))) ↔ a(a(c(a(a(x1730))))) ↔ t
• The critical peak s = b(a(c(a(a(x1730)))))←→_ε a(a(a(c(c(x1730))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1730))))) ↔ a(a(a(a(a(x1730))))) ↔ a(a(a(a(c(x1730))))) ↔ t
• The critical peak s = b(a(c(a(a(x1730)))))←→_ε a(a(a(c(c(x1730))))) = t can be joined as follows.
  s ↔ b(a(a(b(a(x1730))))) ↔ a(a(a(b(a(x1730))))) ↔ a(a(c(a(a(x1730))))) ↔ t
• The critical peak s = b(a(c(a(a(x1730)))))←→_ε a(a(a(c(c(x1730))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1730))))) ↔ a(a(c(a(a(x1730))))) ↔ t
• The critical peak s = b(a(c(a(a(x1730)))))←→_ε a(a(a(c(c(x1730))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1730))))) ↔ a(a(c(a(a(x1730))))) ↔ a(a(c(b(c(x1730))))) ↔ t
• The critical peak s = b(a(c(a(a(x1730)))))←→_ε a(a(a(c(c(x1730))))) = t can be joined as follows.
  s ↔ b(c(c(a(a(x1730))))) ↔ a(a(c(a(a(x1730))))) ↔ t
• The critical peak s = b(a(c(a(a(x1730)))))←→_ε a(a(a(c(c(x1730))))) = t can be joined as follows.
  s ↔ b(c(c(a(a(x1730))))) ↔ a(a(c(a(a(x1730))))) ↔ a(a(c(b(c(x1730))))) ↔ t
• The critical peak s = b(c(a(a(x1731))))←→_ε a(a(b(c(x1731)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1731)))) ↔ t
• The critical peak s = c(a(c(a(a(x1732)))))←→_ε a(a(a(c(c(x1732))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1732))))) ↔ a(a(c(a(a(x1732))))) ↔ t
• The critical peak s = c(a(c(a(a(x1732)))))←→_ε a(a(a(c(c(x1732))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1732))))) ↔ a(a(a(a(c(x1732))))) ↔ t
• The critical peak s = c(a(c(a(a(x1732)))))←→_ε a(a(a(c(c(x1732))))) = t can be joined as follows.
  s ↔ a(b(c(a(a(x1732))))) ↔ a(a(a(a(a(x1732))))) ↔ a(a(c(a(a(x1732))))) ↔ t
• The critical peak s = c(a(c(a(a(x1732)))))←→_ε a(a(a(c(c(x1732))))) = t can be joined as follows.
  s ↔ a(b(c(a(a(x1732))))) ↔ a(a(a(a(a(x1732))))) ↔ a(a(a(a(c(x1732))))) ↔ t
• The critical peak s = c(a(c(a(a(x1732)))))←→_ε a(a(a(c(c(x1732))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1732))))) ↔ a(a(a(a(a(x1732))))) ↔ a(a(c(a(a(x1732))))) ↔ t
• The critical peak s = c(a(c(a(a(x1732)))))←→_ε a(a(a(c(c(x1732))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1732))))) ↔ a(a(a(a(a(x1732))))) ↔ a(a(a(a(c(x1732))))) ↔ t
• The critical peak s = c(a(c(a(a(x1732)))))←→_ε a(a(a(c(c(x1732))))) = t can be joined as follows.
  s ↔ c(a(a(b(a(x1732))))) ↔ a(a(a(b(a(x1732))))) ↔ a(a(c(a(a(x1732))))) ↔ t
• The critical peak s = c(a(c(a(a(x1732)))))←→_ε a(a(a(c(c(x1732))))) = t can be joined as follows.
  s ↔ a(b(c(a(a(x1732))))) ↔ a(a(c(a(a(x1732))))) ↔ t
• The critical peak s = c(a(c(a(a(x1732)))))←→_ε a(a(a(c(c(x1732))))) = t can be joined as follows.
  s ↔ a(b(c(a(a(x1732))))) ↔ a(a(c(a(a(x1732))))) ↔ a(a(c(b(c(x1732))))) ↔ t
• The critical peak s = a(c(c(a(a(x1733)))))←→_ε a(a(a(c(c(x1733))))) = t can be joined as follows.
  s ↔ a(c(c(a(a(x1733))))) ↔ a(a(c(a(a(x1733))))) ↔ t
• The critical peak s = a(c(c(a(a(x1733)))))←→_ε a(a(a(c(c(x1733))))) = t can be joined as follows.
  s ↔ a(c(a(b(a(x1733))))) ↔ a(a(a(b(a(x1733))))) ↔ a(a(c(a(a(x1733))))) ↔ t
• The critical peak s = a(c(c(a(a(x1733)))))←→_ε a(a(a(c(c(x1733))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1733))))) ↔ a(a(a(a(a(x1733))))) ↔ a(a(c(a(a(x1733))))) ↔ t
• The critical peak s = a(c(c(a(a(x1733)))))←→_ε a(a(a(c(c(x1733))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1733))))) ↔ a(a(a(a(a(x1733))))) ↔ a(a(a(a(c(x1733))))) ↔ t
• The critical peak s = a(c(c(a(a(x1733)))))←→_ε a(a(a(c(c(x1733))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1733))))) ↔ a(a(a(a(a(x1733))))) ↔ a(a(c(a(a(x1733))))) ↔ t
• The critical peak s = a(c(c(a(a(x1733)))))←→_ε a(a(a(c(c(x1733))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1733))))) ↔ a(a(a(a(a(x1733))))) ↔ a(a(a(a(c(x1733))))) ↔ t
• The critical peak s = a(c(a(a(x1734))))←→_ε a(a(a(c(x1734)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1734)))) ↔ t
• The critical peak s = c(b(c(a(a(x1735)))))←→_ε a(a(b(c(c(x1735))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1735))))) ↔ a(a(a(a(a(x1735))))) ↔ a(a(a(a(c(x1735))))) ↔ t
• The critical peak s = c(c(a(a(x1736))))←→_ε a(a(a(c(x1736)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1736)))) ↔ a(a(a(a(x1736)))) ↔ t
• The critical peak s = a(c(c(a(a(x1737)))))←→_ε c(c(a(c(c(x1737))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1737))))) ↔ c(a(a(a(c(x1737))))) ↔ t
• The critical peak s = a(c(c(a(a(x1737)))))←→_ε c(c(a(c(c(x1737))))) = t can be joined as follows.
  s ↔ c(b(c(a(a(x1737))))) ↔ c(a(a(a(a(x1737))))) ↔ c(a(a(a(c(x1737))))) ↔ t
• The critical peak s = a(c(c(a(a(x1737)))))←→_ε c(c(a(c(c(x1737))))) = t can be joined as follows.
  s ↔ a(c(a(b(a(x1737))))) ↔ c(c(a(b(a(x1737))))) ↔ c(c(c(a(a(x1737))))) ↔ t
• The critical peak s = a(c(c(a(a(x1737)))))←→_ε c(c(a(c(c(x1737))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1737))))) ↔ c(c(a(a(a(x1737))))) ↔ c(c(c(a(a(x1737))))) ↔ t
• The critical peak s = b(a(a(a(x1738))))←→_ε c(a(a(c(x1738)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1738)))) ↔ t
• The critical peak s = c(a(a(a(x1739))))←→_ε a(b(a(c(x1739)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1739)))) ↔ a(c(a(c(x1739)))) ↔ t
• The critical peak s = c(a(a(a(x1739))))←→_ε a(b(a(c(x1739)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1739)))) ↔ a(b(c(b(x1739)))) ↔ t
• The critical peak s = c(a(a(a(x1739))))←→_ε a(b(a(c(x1739)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1739)))) ↔ a(a(a(c(x1739)))) ↔ t
• The critical peak s = c(a(a(a(x1739))))←→_ε a(b(a(c(x1739)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1739)))) ↔ a(a(a(b(x1739)))) ↔ t
• The critical peak s = c(a(a(a(x1739))))←→_ε a(b(a(c(x1739)))) = t can be joined as follows.
  s ↔ a(b(a(a(x1739)))) ↔ a(a(a(a(x1739)))) ↔ a(c(a(c(x1739)))) ↔ t
• The critical peak s = c(a(a(a(x1739))))←→_ε a(b(a(c(x1739)))) = t can be joined as follows.
  s ↔ a(b(a(a(x1739)))) ↔ a(a(a(a(x1739)))) ↔ a(b(c(b(x1739)))) ↔ t
• The critical peak s = c(a(a(a(x1739))))←→_ε a(b(a(c(x1739)))) = t can be joined as follows.
  s ↔ a(b(a(a(x1739)))) ↔ a(a(a(a(x1739)))) ↔ a(a(a(c(x1739)))) ↔ t
• The critical peak s = c(a(a(a(x1739))))←→_ε a(b(a(c(x1739)))) = t can be joined as follows.
  s ↔ a(b(a(a(x1739)))) ↔ a(a(a(a(x1739)))) ↔ a(a(a(b(x1739)))) ↔ t
• The critical peak s = b(a(a(a(x1740))))←→_ε a(a(a(c(x1740)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1740)))) ↔ t
• The critical peak s = b(a(a(a(a(x1741)))))←→_ε a(a(a(a(c(x1741))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1741))))) ↔ t
• The critical peak s = c(a(a(a(x1742))))←→_ε a(a(a(c(x1742)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1742)))) ↔ t
• The critical peak s = c(a(a(a(a(x1743)))))←→_ε a(a(a(a(c(x1743))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1743))))) ↔ t
• The critical peak s = a(c(a(a(a(x1744)))))←→_ε a(a(a(a(c(x1744))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1744))))) ↔ t
• The critical peak s = c(b(a(a(a(x1745)))))←→_ε a(a(b(a(c(x1745))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1745))))) ↔ a(a(a(a(a(x1745))))) ↔ a(a(c(a(c(x1745))))) ↔ t
• The critical peak s = c(b(a(a(a(x1745)))))←→_ε a(a(b(a(c(x1745))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1745))))) ↔ a(a(a(a(a(x1745))))) ↔ a(a(b(c(b(x1745))))) ↔ t
• The critical peak s = c(b(a(a(a(x1745)))))←→_ε a(a(b(a(c(x1745))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1745))))) ↔ a(a(a(a(a(x1745))))) ↔ a(a(a(a(c(x1745))))) ↔ t
• The critical peak s = c(b(a(a(a(x1745)))))←→_ε a(a(b(a(c(x1745))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1745))))) ↔ a(a(a(a(a(x1745))))) ↔ a(a(a(a(b(x1745))))) ↔ t
• The critical peak s = c(b(a(a(a(x1745)))))←→_ε a(a(b(a(c(x1745))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1745))))) ↔ a(a(a(a(a(x1745))))) ↔ a(a(c(a(c(x1745))))) ↔ t
• The critical peak s = c(b(a(a(a(x1745)))))←→_ε a(a(b(a(c(x1745))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1745))))) ↔ a(a(a(a(a(x1745))))) ↔ a(a(b(c(b(x1745))))) ↔ t
• The critical peak s = c(b(a(a(a(x1745)))))←→_ε a(a(b(a(c(x1745))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1745))))) ↔ a(a(a(a(a(x1745))))) ↔ a(a(a(a(c(x1745))))) ↔ t
• The critical peak s = c(b(a(a(a(x1745)))))←→_ε a(a(b(a(c(x1745))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1745))))) ↔ a(a(a(a(a(x1745))))) ↔ a(a(a(a(b(x1745))))) ↔ t
• The critical peak s = c(b(a(a(a(x1745)))))←→_ε a(a(b(a(c(x1745))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1745))))) ↔ a(a(a(a(a(x1745))))) ↔ a(a(c(a(c(x1745))))) ↔ t
• The critical peak s = c(b(a(a(a(x1745)))))←→_ε a(a(b(a(c(x1745))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1745))))) ↔ a(a(a(a(a(x1745))))) ↔ a(a(b(c(b(x1745))))) ↔ t
• The critical peak s = c(b(a(a(a(x1745)))))←→_ε a(a(b(a(c(x1745))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1745))))) ↔ a(a(a(a(a(x1745))))) ↔ a(a(a(a(c(x1745))))) ↔ t
• The critical peak s = c(b(a(a(a(x1745)))))←→_ε a(a(b(a(c(x1745))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1745))))) ↔ a(a(a(a(a(x1745))))) ↔ a(a(a(a(b(x1745))))) ↔ t
• The critical peak s = a(c(a(a(a(x1746)))))←→_ε c(c(a(a(c(x1746))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1746))))) ↔ t
• The critical peak s = b(a(a(a(x1747))))←→_ε c(a(b(b(x1747)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1747)))) ↔ t
• The critical peak s = c(a(a(a(x1748))))←→_ε a(b(b(b(x1748)))) = t can be joined as follows.
  s ↔ a(b(a(a(x1748)))) ↔ a(b(a(b(x1748)))) ↔ t
• The critical peak s = c(a(a(a(x1748))))←→_ε a(b(b(b(x1748)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1748)))) ↔ a(b(a(b(x1748)))) ↔ t
• The critical peak s = c(a(a(a(x1748))))←→_ε a(b(b(b(x1748)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1748)))) ↔ a(a(b(b(x1748)))) ↔ t
• The critical peak s = c(a(a(a(x1748))))←→_ε a(b(b(b(x1748)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1748)))) ↔ a(a(a(b(x1748)))) ↔ t
• The critical peak s = c(a(a(a(x1748))))←→_ε a(b(b(b(x1748)))) = t can be joined as follows.
  s ↔ a(b(a(a(x1748)))) ↔ a(a(a(a(x1748)))) ↔ a(b(a(b(x1748)))) ↔ t
• The critical peak s = c(a(a(a(x1748))))←→_ε a(b(b(b(x1748)))) = t can be joined as follows.
  s ↔ a(b(a(a(x1748)))) ↔ a(a(a(a(x1748)))) ↔ a(a(b(b(x1748)))) ↔ t
• The critical peak s = c(a(a(a(x1748))))←→_ε a(b(b(b(x1748)))) = t can be joined as follows.
  s ↔ a(b(a(a(x1748)))) ↔ a(a(a(a(x1748)))) ↔ a(a(a(b(x1748)))) ↔ t
• The critical peak s = a(a(a(x1749)))←→_ε a(a(b(x1749))) = t can be joined as follows.
  s ↔ a(a(a(x1749))) ↔ t
• The critical peak s = b(a(a(a(a(x1750)))))←→_ε a(a(a(b(b(x1750))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1750))))) ↔ t
• The critical peak s = c(a(a(a(a(x1751)))))←→_ε a(a(a(b(b(x1751))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1751))))) ↔ t
• The critical peak s = b(a(a(a(x1752))))←→_ε a(b(b(b(x1752)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1752)))) ↔ a(b(a(b(x1752)))) ↔ t
• The critical peak s = b(a(a(a(x1752))))←→_ε a(b(b(b(x1752)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1752)))) ↔ a(a(b(b(x1752)))) ↔ t
• The critical peak s = b(a(a(a(x1752))))←→_ε a(b(b(b(x1752)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1752)))) ↔ a(a(a(b(x1752)))) ↔ t
• The critical peak s = b(a(a(a(x1752))))←→_ε a(b(b(b(x1752)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1752)))) ↔ a(a(a(a(x1752)))) ↔ a(b(a(b(x1752)))) ↔ t
• The critical peak s = b(a(a(a(x1752))))←→_ε a(b(b(b(x1752)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1752)))) ↔ a(a(a(a(x1752)))) ↔ a(a(b(b(x1752)))) ↔ t
• The critical peak s = b(a(a(a(x1752))))←→_ε a(b(b(b(x1752)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1752)))) ↔ a(a(a(a(x1752)))) ↔ a(a(a(b(x1752)))) ↔ t
• The critical peak s = b(a(a(a(x1752))))←→_ε a(b(b(b(x1752)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1752)))) ↔ a(b(a(a(x1752)))) ↔ a(b(a(b(x1752)))) ↔ t
• The critical peak s = b(a(a(a(x1753))))←→_ε a(a(a(b(x1753)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1753)))) ↔ t
• The critical peak s = a(c(a(a(a(x1754)))))←→_ε a(a(a(b(b(x1754))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1754))))) ↔ t
• The critical peak s = c(b(a(a(a(x1755)))))←→_ε a(a(b(b(b(x1755))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1755))))) ↔ a(a(b(a(b(x1755))))) ↔ t
• The critical peak s = c(b(a(a(a(x1755)))))←→_ε a(a(b(b(b(x1755))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1755))))) ↔ a(a(b(a(a(x1755))))) ↔ a(a(b(a(b(x1755))))) ↔ t
• The critical peak s = c(b(a(a(a(x1755)))))←→_ε a(a(b(b(b(x1755))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1755))))) ↔ a(a(a(a(a(x1755))))) ↔ a(a(b(a(b(x1755))))) ↔ t
• The critical peak s = c(b(a(a(a(x1755)))))←→_ε a(a(b(b(b(x1755))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1755))))) ↔ a(a(a(a(a(x1755))))) ↔ a(a(a(b(b(x1755))))) ↔ t
• The critical peak s = c(b(a(a(a(x1755)))))←→_ε a(a(b(b(b(x1755))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1755))))) ↔ a(a(a(a(a(x1755))))) ↔ a(a(a(a(b(x1755))))) ↔ t
• The critical peak s = c(b(a(a(a(x1755)))))←→_ε a(a(b(b(b(x1755))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1755))))) ↔ a(a(a(a(a(x1755))))) ↔ a(a(b(a(b(x1755))))) ↔ t
• The critical peak s = c(b(a(a(a(x1755)))))←→_ε a(a(b(b(b(x1755))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1755))))) ↔ a(a(a(a(a(x1755))))) ↔ a(a(a(b(b(x1755))))) ↔ t
• The critical peak s = c(b(a(a(a(x1755)))))←→_ε a(a(b(b(b(x1755))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1755))))) ↔ a(a(a(a(a(x1755))))) ↔ a(a(a(a(b(x1755))))) ↔ t
• The critical peak s = c(b(a(a(a(x1755)))))←→_ε a(a(b(b(b(x1755))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1755))))) ↔ a(a(a(a(a(x1755))))) ↔ a(a(b(a(b(x1755))))) ↔ t
• The critical peak s = c(b(a(a(a(x1755)))))←→_ε a(a(b(b(b(x1755))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1755))))) ↔ a(a(a(a(a(x1755))))) ↔ a(a(a(b(b(x1755))))) ↔ t
• The critical peak s = c(b(a(a(a(x1755)))))←→_ε a(a(b(b(b(x1755))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1755))))) ↔ a(a(a(a(a(x1755))))) ↔ a(a(a(a(b(x1755))))) ↔ t
• The critical peak s = a(c(a(a(a(x1756)))))←→_ε c(c(a(b(b(x1756))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1756))))) ↔ t
• The critical peak s = b(c(a(b(x1757))))←→_ε c(a(c(b(x1757)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1757)))) ↔ t
• The critical peak s = c(a(b(x1758)))←→_ε c(b(b(x1758))) = t can be joined as follows.
  s ↔ c(a(b(x1758))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(c(a(b(x1759)))) ↔ a(c(a(b(x1759)))) ↔ a(a(c(b(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ a(c(b(b(x1759)))) ↔ a(a(c(b(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ c(a(a(b(x1759)))) ↔ a(c(c(b(x1759)))) ↔ a(c(a(c(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ c(a(a(b(x1759)))) ↔ c(b(a(c(x1759)))) ↔ a(c(a(c(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ c(a(a(a(x1759)))) ↔ c(c(a(c(x1759)))) ↔ a(c(a(c(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1759)))) ↔ c(a(a(a(x1759)))) ↔ c(c(a(c(x1759)))) ↔ a(c(a(c(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ c(a(a(b(x1759)))) ↔ c(a(a(a(x1759)))) ↔ c(c(a(c(x1759)))) ↔ a(c(a(c(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1759)))) ↔ c(a(b(a(x1759)))) ↔ c(a(a(a(x1759)))) ↔ c(c(a(c(x1759)))) ↔ a(c(a(c(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ a(b(b(b(x1759)))) ↔ a(a(b(b(x1759)))) ↔ a(c(a(b(x1759)))) ↔ a(a(c(b(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ a(b(b(b(x1759)))) ↔ a(a(a(b(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ a(b(b(b(x1759)))) ↔ a(a(a(b(x1759)))) ↔ a(a(c(b(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ a(b(b(b(x1759)))) ↔ a(a(a(b(x1759)))) ↔ a(b(a(c(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ a(b(b(b(x1759)))) ↔ a(a(a(b(x1759)))) ↔ a(c(a(b(x1759)))) ↔ a(a(c(b(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ c(a(a(b(x1759)))) ↔ a(a(a(b(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ c(a(a(b(x1759)))) ↔ a(a(a(b(x1759)))) ↔ a(a(c(b(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ c(a(a(b(x1759)))) ↔ a(a(a(b(x1759)))) ↔ a(b(a(c(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ c(a(a(b(x1759)))) ↔ a(a(a(b(x1759)))) ↔ a(c(a(b(x1759)))) ↔ a(a(c(b(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ a(a(a(b(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ a(a(a(b(x1759)))) ↔ a(a(c(b(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ a(a(a(b(x1759)))) ↔ a(b(a(c(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ a(c(a(c(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ a(c(a(c(x1759)))) ↔ a(b(a(c(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ a(a(a(c(x1759)))) ↔ a(a(c(b(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ a(a(a(c(x1759)))) ↔ a(b(a(c(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ a(a(a(c(x1759)))) ↔ a(c(a(c(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ a(a(b(c(x1759)))) ↔ a(c(a(c(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ a(a(a(b(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ a(a(a(b(x1759)))) ↔ a(a(c(b(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ a(a(a(b(x1759)))) ↔ a(b(a(c(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ a(c(a(c(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ a(c(a(c(x1759)))) ↔ a(b(a(c(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ a(a(a(c(x1759)))) ↔ a(a(c(b(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ a(a(a(c(x1759)))) ↔ a(b(a(c(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ a(a(a(c(x1759)))) ↔ a(c(a(c(x1759)))) ↔ t
• The critical peak s = c(c(a(b(x1759))))←→_ε a(b(c(b(x1759)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1759)))) ↔ c(a(a(a(x1759)))) ↔ a(a(a(a(x1759)))) ↔ a(a(b(c(x1759)))) ↔ a(c(a(c(x1759)))) ↔ t
• The critical peak s = b(a(c(a(b(x1760)))))←→_ε a(a(a(c(b(x1760))))) = t can be joined as follows.
  s ↔ c(a(c(a(b(x1760))))) ↔ a(a(a(a(b(x1760))))) ↔ t
• The critical peak s = b(a(c(a(b(x1760)))))←→_ε a(a(a(c(b(x1760))))) = t can be joined as follows.
  s ↔ c(a(c(a(b(x1760))))) ↔ a(a(a(a(b(x1760))))) ↔ a(a(c(a(b(x1760))))) ↔ t
• The critical peak s = b(a(c(a(b(x1760)))))←→_ε a(a(a(c(b(x1760))))) = t can be joined as follows.
  s ↔ b(c(b(a(b(x1760))))) ↔ a(a(a(a(b(x1760))))) ↔ t
• The critical peak s = b(a(c(a(b(x1760)))))←→_ε a(a(a(c(b(x1760))))) = t can be joined as follows.
  s ↔ b(c(b(a(b(x1760))))) ↔ a(a(a(a(b(x1760))))) ↔ a(a(c(a(b(x1760))))) ↔ t
• The critical peak s = b(a(c(a(b(x1760)))))←→_ε a(a(a(c(b(x1760))))) = t can be joined as follows.
  s ↔ a(a(b(a(b(x1760))))) ↔ a(a(a(a(b(x1760))))) ↔ t
• The critical peak s = b(a(c(a(b(x1760)))))←→_ε a(a(a(c(b(x1760))))) = t can be joined as follows.
  s ↔ a(a(b(a(b(x1760))))) ↔ a(a(a(a(b(x1760))))) ↔ a(a(c(a(b(x1760))))) ↔ t
• The critical peak s = b(a(c(a(b(x1760)))))←→_ε a(a(a(c(b(x1760))))) = t can be joined as follows.
  s ↔ b(a(a(a(b(x1760))))) ↔ a(a(a(a(b(x1760))))) ↔ t
• The critical peak s = b(a(c(a(b(x1760)))))←→_ε a(a(a(c(b(x1760))))) = t can be joined as follows.
  s ↔ b(a(a(a(b(x1760))))) ↔ a(a(a(a(b(x1760))))) ↔ a(a(c(a(b(x1760))))) ↔ t
• The critical peak s = b(a(c(a(b(x1760)))))←→_ε a(a(a(c(b(x1760))))) = t can be joined as follows.
  s ↔ b(a(a(b(b(x1760))))) ↔ a(a(a(b(b(x1760))))) ↔ a(a(c(b(b(x1760))))) ↔ t
• The critical peak s = b(a(c(a(b(x1760)))))←→_ε a(a(a(c(b(x1760))))) = t can be joined as follows.
  s ↔ b(a(a(b(b(x1760))))) ↔ a(a(a(b(b(x1760))))) ↔ a(a(c(a(b(x1760))))) ↔ t
• The critical peak s = b(a(c(a(b(x1760)))))←→_ε a(a(a(c(b(x1760))))) = t can be joined as follows.
  s ↔ a(a(b(a(b(x1760))))) ↔ a(a(a(b(b(x1760))))) ↔ a(a(c(b(b(x1760))))) ↔ t
• The critical peak s = b(a(c(a(b(x1760)))))←→_ε a(a(a(c(b(x1760))))) = t can be joined as follows.
  s ↔ a(a(b(a(b(x1760))))) ↔ a(a(a(b(b(x1760))))) ↔ a(a(c(a(b(x1760))))) ↔ t
• The critical peak s = b(a(c(a(b(x1760)))))←→_ε a(a(a(c(b(x1760))))) = t can be joined as follows.
  s ↔ a(a(b(a(b(x1760))))) ↔ a(a(c(a(b(x1760))))) ↔ t
• The critical peak s = b(a(c(a(b(x1760)))))←→_ε a(a(a(c(b(x1760))))) = t can be joined as follows.
  s ↔ a(a(b(a(b(x1760))))) ↔ a(a(c(a(b(x1760))))) ↔ a(a(c(b(b(x1760))))) ↔ t
• The critical peak s = b(a(c(a(b(x1760)))))←→_ε a(a(a(c(b(x1760))))) = t can be joined as follows.
  s ↔ b(c(c(a(b(x1760))))) ↔ a(a(c(a(b(x1760))))) ↔ t
• The critical peak s = b(a(c(a(b(x1760)))))←→_ε a(a(a(c(b(x1760))))) = t can be joined as follows.
  s ↔ b(c(c(a(b(x1760))))) ↔ a(a(c(a(b(x1760))))) ↔ a(a(c(b(b(x1760))))) ↔ t
• The critical peak s = b(a(c(a(b(x1760)))))←→_ε a(a(a(c(b(x1760))))) = t can be joined as follows.
  s ↔ a(a(b(a(b(x1760))))) ↔ a(a(a(a(a(x1760))))) ↔ a(a(a(a(c(x1760))))) ↔ t
• The critical peak s = b(a(c(a(b(x1760)))))←→_ε a(a(a(c(b(x1760))))) = t can be joined as follows.
  s ↔ a(a(b(a(b(x1760))))) ↔ a(a(a(a(a(x1760))))) ↔ a(a(a(a(b(x1760))))) ↔ t
• The critical peak s = b(c(a(b(x1761))))←→_ε a(a(b(b(x1761)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1761)))) ↔ t
• The critical peak s = c(a(c(a(b(x1762)))))←→_ε a(a(a(c(b(x1762))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1762))))) ↔ t
• The critical peak s = a(c(c(a(b(x1763)))))←→_ε a(a(a(c(b(x1763))))) = t can be joined as follows.
  s ↔ a(c(c(a(b(x1763))))) ↔ a(a(c(a(b(x1763))))) ↔ t
• The critical peak s = a(c(c(a(b(x1763)))))←→_ε a(a(a(c(b(x1763))))) = t can be joined as follows.
  s ↔ a(c(a(b(b(x1763))))) ↔ a(a(c(b(b(x1763))))) ↔ t
• The critical peak s = a(c(c(a(b(x1763)))))←→_ε a(a(a(c(b(x1763))))) = t can be joined as follows.
  s ↔ a(c(a(b(b(x1763))))) ↔ a(a(a(b(b(x1763))))) ↔ a(a(c(b(b(x1763))))) ↔ t
• The critical peak s = a(c(c(a(b(x1763)))))←→_ε a(a(a(c(b(x1763))))) = t can be joined as follows.
  s ↔ a(c(a(b(b(x1763))))) ↔ a(a(a(b(b(x1763))))) ↔ a(a(c(a(b(x1763))))) ↔ t
• The critical peak s = a(c(c(a(b(x1763)))))←→_ε a(a(a(c(b(x1763))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1763))))) ↔ a(a(a(a(b(x1763))))) ↔ t
• The critical peak s = a(c(c(a(b(x1763)))))←→_ε a(a(a(c(b(x1763))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1763))))) ↔ a(a(a(a(b(x1763))))) ↔ a(a(c(a(b(x1763))))) ↔ t
• The critical peak s = a(c(a(b(x1764))))←→_ε a(a(a(b(x1764)))) = t can be joined as follows.
  s ↔ t
• The critical peak s = c(b(c(a(b(x1765)))))←→_ε a(a(b(c(b(x1765))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1765))))) ↔ a(a(a(a(b(x1765))))) ↔ t
• The critical peak s = c(b(c(a(b(x1765)))))←→_ε a(a(b(c(b(x1765))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1765))))) ↔ a(a(a(a(b(x1765))))) ↔ a(a(a(c(b(x1765))))) ↔ t
• The critical peak s = c(b(c(a(b(x1765)))))←→_ε a(a(b(c(b(x1765))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1765))))) ↔ a(a(a(a(b(x1765))))) ↔ a(a(b(a(c(x1765))))) ↔ t
• The critical peak s = c(c(a(b(x1766))))←→_ε a(a(a(b(x1766)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1766)))) ↔ a(b(b(b(x1766)))) ↔ t
• The critical peak s = c(c(a(b(x1766))))←→_ε a(a(a(b(x1766)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1766)))) ↔ c(a(a(b(x1766)))) ↔ t
• The critical peak s = c(c(a(b(x1766))))←→_ε a(a(a(b(x1766)))) = t can be joined as follows.
  s ↔ c(a(b(b(x1766)))) ↔ c(a(a(a(x1766)))) ↔ a(a(a(a(x1766)))) ↔ t
• The critical peak s = c(c(a(b(x1766))))←→_ε a(a(a(b(x1766)))) = t can be joined as follows.
  s ↔ c(c(a(a(x1766)))) ↔ c(a(a(a(x1766)))) ↔ a(a(a(a(x1766)))) ↔ t
• The critical peak s = a(c(c(a(b(x1767)))))←→_ε c(c(a(c(b(x1767))))) = t can be joined as follows.
  s ↔ c(a(a(a(b(x1767))))) ↔ t
• The critical peak s = a(a(a(b(x1768))))←→_ε c(b(b(a(x1768)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1768)))) ↔ a(c(b(a(x1768)))) ↔ t
• The critical peak s = a(a(b(x1769)))←→_ε a(c(a(x1769))) = t can be joined as follows.
  s ↔ a(a(b(x1769))) ↔ t
• The critical peak s = a(a(b(x1769)))←→_ε a(c(a(x1769))) = t can be joined as follows.
  s ↔ a(a(a(x1769))) ↔ t
• The critical peak s = b(a(a(b(x1770))))←→_ε a(a(b(a(x1770)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1770)))) ↔ a(a(c(a(x1770)))) ↔ t
• The critical peak s = b(a(a(b(x1770))))←→_ε a(a(b(a(x1770)))) = t can be joined as follows.
  s ↔ c(a(a(b(x1770)))) ↔ a(a(a(b(x1770)))) ↔ a(a(c(a(x1770)))) ↔ t
• The critical peak s = b(a(a(b(x1770))))←→_ε a(a(b(a(x1770)))) = t can be joined as follows.
  s ↔ b(a(a(a(x1770)))) ↔ a(a(a(a(x1770)))) ↔ t
• The critical peak s = b(a(a(b(x1770))))←→_ε a(a(b(a(x1770)))) = t can be joined as follows.
  s ↔ b(a(a(a(x1770)))) ↔ a(a(a(a(x1770)))) ↔ a(a(c(a(x1770)))) ↔ t
• The critical peak s = b(a(a(b(x1770))))←→_ε a(a(b(a(x1770)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1770)))) ↔ a(a(a(a(x1770)))) ↔ t
• The critical peak s = b(a(a(b(x1770))))←→_ε a(a(b(a(x1770)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1770)))) ↔ a(a(a(a(x1770)))) ↔ a(a(c(a(x1770)))) ↔ t
• The critical peak s = b(a(a(a(b(x1771)))))←→_ε a(a(b(b(a(x1771))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1771))))) ↔ a(a(a(a(a(x1771))))) ↔ t
• The critical peak s = b(a(a(a(b(x1771)))))←→_ε a(a(b(b(a(x1771))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1771))))) ↔ a(a(a(a(a(x1771))))) ↔ a(a(b(c(a(x1771))))) ↔ t
• The critical peak s = b(a(a(a(b(x1771)))))←→_ε a(a(b(b(a(x1771))))) = t can be joined as follows.
  s ↔ b(a(a(a(a(x1771))))) ↔ a(a(a(a(a(x1771))))) ↔ a(a(a(b(a(x1771))))) ↔ t
• The critical peak s = b(a(a(a(b(x1771)))))←→_ε a(a(b(b(a(x1771))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1771))))) ↔ a(a(a(a(a(x1771))))) ↔ t
• The critical peak s = b(a(a(a(b(x1771)))))←→_ε a(a(b(b(a(x1771))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1771))))) ↔ a(a(a(a(a(x1771))))) ↔ a(a(b(c(a(x1771))))) ↔ t
• The critical peak s = b(a(a(a(b(x1771)))))←→_ε a(a(b(b(a(x1771))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1771))))) ↔ a(a(a(a(a(x1771))))) ↔ a(a(a(b(a(x1771))))) ↔ t
• The critical peak s = c(a(a(b(x1772))))←→_ε a(b(c(a(x1772)))) = t can be joined as follows.
  s ↔ a(b(a(b(x1772)))) ↔ t
• The critical peak s = b(a(a(b(x1773))))←→_ε a(a(a(a(x1773)))) = t can be joined as follows.
  s ↔ b(a(a(a(x1773)))) ↔ t
• The critical peak s = b(a(a(b(x1773))))←→_ε a(a(a(a(x1773)))) = t can be joined as follows.
  s ↔ a(a(a(b(x1773)))) ↔ t
• The critical peak s = b(a(a(b(x1774))))←→_ε c(a(c(a(x1774)))) = t can be joined as follows.
  s ↔ c(a(a(b(x1774)))) ↔ t
• The critical peak s = a(c(a(a(b(x1775)))))←→_ε c(a(a(b(a(x1775))))) = t can be joined as follows.
  s ↔ c(b(a(a(b(x1775))))) ↔ c(a(a(a(b(x1775))))) ↔ c(a(a(c(a(x1775))))) ↔ t
• The critical peak s = a(c(a(a(b(x1775)))))←→_ε c(a(a(b(a(x1775))))) = t can be joined as follows.
  s ↔ c(c(a(a(b(x1775))))) ↔ c(a(a(a(b(x1775))))) ↔ c(a(a(c(a(x1775))))) ↔ t
• The critical peak s = a(c(a(a(b(x1775)))))←→_ε c(a(a(b(a(x1775))))) = t can be joined as follows.
  s ↔ a(a(b(a(b(x1775))))) ↔ a(a(a(a(a(x1775))))) ↔ a(b(a(b(a(x1775))))) ↔ t
• The critical peak s = a(c(a(a(b(x1775)))))←→_ε c(a(a(b(a(x1775))))) = t can be joined as follows.
  s ↔ a(a(b(a(b(x1775))))) ↔ a(a(a(a(a(x1775))))) ↔ c(a(a(a(a(x1775))))) ↔ t
• The critical peak s = a(c(a(a(b(x1775)))))←→_ε c(a(a(b(a(x1775))))) = t can be joined as follows.
  s ↔ a(a(b(a(b(x1775))))) ↔ a(a(a(a(a(x1775))))) ↔ a(a(a(b(a(x1775))))) ↔ t
• The critical peak s = a(c(a(a(b(x1775)))))←→_ε c(a(a(b(a(x1775))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1775))))) ↔ a(a(a(a(a(x1775))))) ↔ a(b(a(b(a(x1775))))) ↔ t
• The critical peak s = a(c(a(a(b(x1775)))))←→_ε c(a(a(b(a(x1775))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1775))))) ↔ a(a(a(a(a(x1775))))) ↔ c(a(a(a(a(x1775))))) ↔ t
• The critical peak s = a(c(a(a(b(x1775)))))←→_ε c(a(a(b(a(x1775))))) = t can be joined as follows.
  s ↔ a(c(a(a(a(x1775))))) ↔ a(a(a(a(a(x1775))))) ↔ a(a(a(b(a(x1775))))) ↔ t
• The critical peak s = a(c(a(a(b(x1775)))))←→_ε c(a(a(b(a(x1775))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1775))))) ↔ a(a(a(a(a(x1775))))) ↔ a(b(a(b(a(x1775))))) ↔ t
• The critical peak s = a(c(a(a(b(x1775)))))←→_ε c(a(a(b(a(x1775))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1775))))) ↔ a(a(a(a(a(x1775))))) ↔ c(a(a(a(a(x1775))))) ↔ t
• The critical peak s = a(c(a(a(b(x1775)))))←→_ε c(a(a(b(a(x1775))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1775))))) ↔ a(a(a(a(a(x1775))))) ↔ a(a(a(b(a(x1775))))) ↔ t
• The critical peak s = a(a(a(a(b(x1776)))))←→_ε a(a(a(b(a(x1776))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1776))))) ↔ t
• The critical peak s = a(a(a(b(x1777))))←→_ε c(a(b(a(x1777)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1777)))) ↔ c(a(c(a(x1777)))) ↔ t
• The critical peak s = a(a(a(b(x1777))))←→_ε c(a(b(a(x1777)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1777)))) ↔ a(b(b(a(x1777)))) ↔ t
• The critical peak s = a(a(a(b(x1777))))←→_ε c(a(b(a(x1777)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1777)))) ↔ c(a(a(a(x1777)))) ↔ t
• The critical peak s = c(a(a(a(b(x1778)))))←→_ε a(a(a(b(a(x1778))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1778))))) ↔ a(a(a(c(a(x1778))))) ↔ t
• The critical peak s = c(a(a(a(b(x1778)))))←→_ε a(a(a(b(a(x1778))))) = t can be joined as follows.
  s ↔ a(b(a(a(b(x1778))))) ↔ a(a(a(a(b(x1778))))) ↔ a(a(a(c(a(x1778))))) ↔ t
• The critical peak s = c(a(a(a(b(x1778)))))←→_ε a(a(a(b(a(x1778))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1778))))) ↔ a(a(a(a(a(x1778))))) ↔ t
• The critical peak s = c(a(a(a(b(x1778)))))←→_ε a(a(a(b(a(x1778))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1778))))) ↔ a(a(a(a(a(x1778))))) ↔ a(a(a(c(a(x1778))))) ↔ t
• The critical peak s = c(a(a(a(b(x1778)))))←→_ε a(a(a(b(a(x1778))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1778))))) ↔ a(a(a(a(a(x1778))))) ↔ t
• The critical peak s = c(a(a(a(b(x1778)))))←→_ε a(a(a(b(a(x1778))))) = t can be joined as follows.
  s ↔ a(a(a(a(b(x1778))))) ↔ a(a(a(a(a(x1778))))) ↔ a(a(a(c(a(x1778))))) ↔ t
• The critical peak s = a(a(a(a(x1779))))←→_ε c(b(a(c(x1779)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1779)))) ↔ a(c(a(c(x1779)))) ↔ t
• The critical peak s = a(a(a(a(x1779))))←→_ε c(b(a(c(x1779)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1779)))) ↔ a(a(b(c(x1779)))) ↔ t
• The critical peak s = a(a(a(x1780)))←→_ε a(b(c(x1780))) = t can be joined as follows.
  s ↔ a(a(a(x1780))) ↔ t
• The critical peak s = b(a(a(a(x1781))))←→_ε a(a(a(c(x1781)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1781)))) ↔ t
• The critical peak s = b(a(a(a(a(x1782)))))←→_ε a(a(b(a(c(x1782))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1782))))) ↔ a(a(c(a(c(x1782))))) ↔ t
• The critical peak s = b(a(a(a(a(x1782)))))←→_ε a(a(b(a(c(x1782))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1782))))) ↔ a(a(b(c(b(x1782))))) ↔ t
• The critical peak s = b(a(a(a(a(x1782)))))←→_ε a(a(b(a(c(x1782))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1782))))) ↔ a(a(a(a(c(x1782))))) ↔ t
• The critical peak s = b(a(a(a(a(x1782)))))←→_ε a(a(b(a(c(x1782))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1782))))) ↔ a(a(a(a(b(x1782))))) ↔ t
• The critical peak s = b(a(a(a(a(x1782)))))←→_ε a(a(b(a(c(x1782))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1782))))) ↔ a(a(a(a(a(x1782))))) ↔ a(a(c(a(c(x1782))))) ↔ t
• The critical peak s = b(a(a(a(a(x1782)))))←→_ε a(a(b(a(c(x1782))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1782))))) ↔ a(a(a(a(a(x1782))))) ↔ a(a(b(c(b(x1782))))) ↔ t
• The critical peak s = b(a(a(a(a(x1782)))))←→_ε a(a(b(a(c(x1782))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1782))))) ↔ a(a(a(a(a(x1782))))) ↔ a(a(a(a(c(x1782))))) ↔ t
• The critical peak s = b(a(a(a(a(x1782)))))←→_ε a(a(b(a(c(x1782))))) = t can be joined as follows.
  s ↔ c(a(a(a(a(x1782))))) ↔ a(a(a(a(a(x1782))))) ↔ a(a(a(a(b(x1782))))) ↔ t
• The critical peak s = a(a(a(a(x1783))))←→_ε a(a(a(c(x1783)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1783)))) ↔ t
• The critical peak s = a(c(a(a(a(x1784)))))←→_ε c(a(a(a(c(x1784))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1784))))) ↔ a(a(a(a(c(x1784))))) ↔ t
• The critical peak s = a(c(a(a(a(x1784)))))←→_ε c(a(a(a(c(x1784))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1784))))) ↔ c(a(a(a(a(x1784))))) ↔ t
• The critical peak s = a(c(a(a(a(x1784)))))←→_ε c(a(a(a(c(x1784))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1784))))) ↔ a(a(a(a(a(x1784))))) ↔ a(a(a(a(c(x1784))))) ↔ t
• The critical peak s = a(c(a(a(a(x1784)))))←→_ε c(a(a(a(c(x1784))))) = t can be joined as follows.
  s ↔ a(a(b(a(a(x1784))))) ↔ a(a(a(a(a(x1784))))) ↔ c(a(a(a(a(x1784))))) ↔ t
• The critical peak s = a(c(a(a(a(x1784)))))←→_ε c(a(a(a(c(x1784))))) = t can be joined as follows.
  s ↔ c(b(a(a(a(x1784))))) ↔ c(a(a(a(a(x1784))))) ↔ t
• The critical peak s = a(c(a(a(a(x1784)))))←→_ε c(a(a(a(c(x1784))))) = t can be joined as follows.
  s ↔ c(c(a(a(a(x1784))))) ↔ c(a(a(a(a(x1784))))) ↔ t
• The critical peak s = a(a(a(a(a(x1785)))))←→_ε a(a(a(a(c(x1785))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1785))))) ↔ t
• The critical peak s = c(a(a(a(a(x1786)))))←→_ε a(a(a(a(c(x1786))))) = t can be joined as follows.
  s ↔ a(a(a(a(a(x1786))))) ↔ t
• The critical peak s = a(a(a(a(x1787))))←→_ε c(c(a(c(x1787)))) = t can be joined as follows.
  s ↔ a(a(a(a(x1787)))) ↔ c(a(a(a(x1787)))) ↔ t
• The critical peak s = b(c(c(a(x1788))))←→_ε c(a(c(a(x1788)))) = t can be joined as follows.
  s ↔ a(a(c(a(x1788)))) ↔ a(b(c(a(x1788)))) ↔ t
• The critical peak s = b(c(c(a(x1788))))←→_ε c(a(c(a(x1788)))) = t can be joined as follows.
  s ↔ b(c(a(b(x1788)))) ↔ a(a(a(b(x1788)))) ↔ c(a(a(b(x1788)))) ↔ t
• The critical peak s = b(c(c(a(x1788))))←→_ε c(a(c(a(x1788)))) = t can be joined as follows.
  s ↔ a(a(c(a(x1788)))) ↔ a(a(a(b(x1788)))) ↔ c(a(a(b(x1788)))) ↔ t
• The critical peak s = b(c(c(a(x1788))))←→_ε c(a(c(a(x1788)))) = t can be joined as follows.
  s ↔ a(a(c(a(x1788)))) ↔ a(a(a(a(x1788)))) ↔ t
• The critical peak s = b(c(c(a(x1788))))←→_ε c(a(c(a(x1788)))) = t can be joined as follows.
  s ↔ a(a(c(a(x1788)))) ↔ a(a(a(a(x1788)))) ↔ a(b(c(a(x1788)))) ↔ t
• The critical peak s = b(c(c(a(x1788))))←→_ε c(a(c(a(x1788)))) = t can be joined as follows.
  s ↔ a(a(c(a(x1788)))) ↔ a(a(a(a(x1788)))) ↔ c(a(a(a(x1788)))) ↔ t
• The critical peak s = c(c(a(x1789)))←→_ε c(b(a(x1789))) = t can be joined as follows.
  s ↔ c(c(a(x1789))) ↔ t
• The critical peak s = c(c(c(a(x1790))))←→_ε a(b(c(a(x1790)))) = t can be joined as follows.
  s ↔ c(c(a(b(x1790)))) ↔ a(c(a(b(x1790)))) ↔ a(b(a(b(x1790)))) ↔ t
• The critical peak s = c(c(c(a(x1790))))←→_ε a(b(c(a(x1790)))) = t can be joined as follows.
  s ↔ c(c(a(b(x1790)))) ↔ c(a(b(b(x1790)))) ↔ c(a(a(a(x1790)))) ↔ a(c(c(a(x1790)))) ↔ a(a(c(a(x1790)))) ↔ t
• The critical peak s = c(c(c(a(x1790))))←→_ε a(b(c(a(x1790)))) = t can be joined as follows.
  s ↔ c(c(a(b(x1790)))) ↔ c(c(a(a(x1790)))) ↔ c(a(a(a(x1790)))) ↔ a(c(c(a(x1790)))) ↔ a(a(c(a(x1790)))) ↔ t
• The critical peak s = c(c(c(a(x1790))))←→_ε a(b(c(a(x1790)))) = t can be joined as follows.
  s ↔ c(c(a(b(x1790)))) ↔ c(c(a(a(x1790)))) ↔ c(a(b(a(x1790)))) ↔ a(c(b(a(x1790)))) ↔ a(a(c(a(x1790)))) ↔ t
• The critical peak s = b(a(c(c(a(x1791)))))←→_ε a(a(a(c(a(x1791))))) = t can be joined as follows.
  s ↔ c(a(c(c(a(x1791))))) ↔ t
• The critical peak s = b(a(c(c(a(x1791)))))←→_ε a(a(a(c(a(x1791))))) = t can be joined as follows.
  s ↔ b(c(b(c(a(x1791))))) ↔ t
• The critical peak s = b(a(c(c(a(x1791)))))←→_ε a(a(a(c(a(x1791))))) = t can be joined as follows.
  s ↔ a(a(b(c(a(x1791))))) ↔ t
• The critical peak s = b(a(c(c(a(x1791)))))←→_ε a(a(a(c(a(x1791))))) = t can be joined as follows.
  s ↔ a(a(b(c(a(x1791))))) ↔ a(a(a(a(a(x1791))))) ↔ t
• The critical peak s = b(a(c(c(a(x1791)))))←→_ε a(a(a(c(a(x1791))))) = t can be joined as follows.
  s ↔ a(a(b(c(a(x1791))))) ↔ a(a(a(a(a(x1791))))) ↔ a(a(a(a(b(x1791))))) ↔ t
• The critical peak s = b(a(c(c(a(x1791)))))←→_ε a(a(a(c(a(x1791))))) = t can be joined as follows.
  s ↔ b(c(a(a(a(x1791))))) ↔ a(a(a(a(a(x1791))))) ↔ t
• The critical peak s = b(a(c(c(a(x1791)))))←→_ε a(a(a(c(a(x1791))))) = t can be joined as follows.
  s ↔ b(c(a(a(a(x1791))))) ↔ a(a(a(a(a(x1791))))) ↔ a(a(a(a(b(x1791))))) ↔ t
• The critical peak s = b(c(c(a(x1792))))←→_ε a(a(b(a(x1792)))) = t can be joined as follows.
  s ↔ a(a(c(a(x1792)))) ↔ t
• The critical peak s = c(a(c(c(a(x1793)))))←→_ε a(a(a(c(a(x1793))))) = t can be joined as follows.
  s ↔ t
• The critical peak s = c(c(a(x100)))←→_ε a(a(a(x100))) = t can be joined as follows.
  s ↔ c(a(b(x100))) ↔ a(b(b(x100))) ↔ t
• The critical peak s = c(c(a(x100)))←→_ε a(a(a(x100))) = t can be joined as follows.
  s ↔ c(a(b(x100))) ↔ c(a(a(x100))) ↔ t
• The critical peak s = a(c(c(c(a(x1795)))))←→_ε a(a(a(c(a(x1795))))) = t can be joined as follows.
  s ↔ c(a(a(c(a(x1795))))) ↔ t
• The critical peak s = a(c(c(a(x1796))))←→_ε a(a(a(a(x1796)))) = t can be joined as follows.
  s ↔ c(a(a(a(x1796)))) ↔ t
• The critical peak s = c(b(c(c(a(x1797)))))←→_ε a(a(b(c(a(x1797))))) = t can be joined as follows.
  s ↔ c(a(a(c(a(x1797))))) ↔ a(a(a(c(a(x1797))))) ↔ t
• The critical peak s = c(c(c(a(x1798))))←→_ε a(a(a(a(x1798)))) = t can be joined as follows.
  s ↔ c(c(a(b(x1798)))) ↔ c(a(b(b(x1798)))) ↔ c(a(a(a(x1798)))) ↔ t
• The critical peak s = c(c(c(a(x1798))))←→_ε a(a(a(a(x1798)))) = t can be joined as follows.
  s ↔ c(c(a(b(x1798)))) ↔ c(c(a(a(x1798)))) ↔ c(a(a(a(x1798)))) ↔ t
• The critical peak s = a(c(c(c(a(x1799)))))←→_ε c(c(a(c(a(x1799))))) = t can be joined as follows.
  s ↔ c(a(a(c(a(x1799))))) ↔ c(a(b(c(a(x1799))))) ↔ t
• The critical peak s = a(c(c(c(a(x1799)))))←→_ε c(c(a(c(a(x1799))))) = t can be joined as follows.
  s ↔ c(b(c(c(a(x1799))))) ↔ c(a(a(c(a(x1799))))) ↔ c(a(b(c(a(x1799))))) ↔ t
• The critical peak s = a(c(c(c(a(x1799)))))←→_ε c(c(a(c(a(x1799))))) = t can be joined as follows.
  s ↔ a(c(c(a(b(x1799))))) ↔ c(a(a(a(b(x1799))))) ↔ c(c(a(a(b(x1799))))) ↔ t
• The critical peak s = a(c(c(c(a(x1799)))))←→_ε c(c(a(c(a(x1799))))) = t can be joined as follows.
  s ↔ c(a(a(c(a(x1799))))) ↔ c(a(a(a(b(x1799))))) ↔ c(c(a(a(b(x1799))))) ↔ t
• The critical peak s = a(c(c(c(a(x1799)))))←→_ε c(c(a(c(a(x1799))))) = t can be joined as follows.
  s ↔ c(a(a(c(a(x1799))))) ↔ c(a(a(a(a(x1799))))) ↔ t
• The critical peak s = a(c(c(c(a(x1799)))))←→_ε c(c(a(c(a(x1799))))) = t can be joined as follows.
  s ↔ c(a(a(c(a(x1799))))) ↔ c(a(a(a(a(x1799))))) ↔ c(a(b(c(a(x1799))))) ↔ t
• The critical peak s = a(c(c(c(a(x1799)))))←→_ε c(c(a(c(a(x1799))))) = t can be joined as follows.
  s ↔ c(a(a(c(a(x1799))))) ↔ c(a(a(a(a(x1799))))) ↔ c(c(a(a(a(x1799))))) ↔ t