a__zeros
cons
0
zeros
a__tail
cons
X
XS
mark
XS
mark
zeros
a__zeros
mark
tail
X
a__tail
mark
X
mark
cons
X1
X2
cons
mark
X1
X2
mark
0
0
a__zeros
zeros
a__tail
X
tail
X
a__zeros
0
cons
2
0
0
zeros
0
a__tail
1
mark
1
tail
1
FULL
./TRS/TRCSR/Ex4_7_77_Bor03_GM.trs