foldl
%X
a
%Y
a
yap
xap
F
%X
%Y
Y
nil
Y
foldl
%Z
a
%U
a
yap
xap
G
%Z
%U
V
cons
W
P
foldl
%V
a
%W
a
yap
xap
G
%V
%W
yap
xap
G
V
W
P
xap
F1
Y1
F1
Y1
yap
G1
V1
G1
V1
F
a
a
a
Y
a
G
a
a
a
V
a
W
a
P
alist
F1
a
a
a
Y1
a
G1
a
a
V1
a
cons
a
alist
alist
foldl
a
a
a
a
alist
a
nil
alist
xap
a
a
a
a
a
a
yap
a
a
a
a
FULL
/tmp/tmpfile.afsm