BEST_CASE(Omega(n^1),?)

Solution:
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  "0" :: [] -(0)-> "A"(0)
  "Cons" :: ["A"(0) x "A"(1)] -(1)-> "A"(1)
  "Cons" :: ["A"(0) x "A"(0)] -(0)-> "A"(0)
  "False" :: [] -(0)-> "A"(0)
  "Nil" :: [] -(0)-> "A"(1)
  "Nil" :: [] -(0)-> "A"(0)
  "S" :: ["A"(0)] -(0)-> "A"(0)
  "True" :: [] -(0)-> "A"(0)
  "cond_insert_ord_x_ys_1" :: ["A"(0) x "A"(0) x "A"(0) x "A"(0)] -(1)-> "A"(0)
  "insert#3" :: ["A"(0) x "A"(0)] -(1)-> "A"(0)
  "leq#2" :: ["A"(0) x "A"(0)] -(1)-> "A"(0)
  "main" :: ["A"(1)] -(1)-> "A"(0)
  "sort#2" :: ["A"(1)] -(1)-> "A"(0)


Cost Free Signatures:
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