prime
0
false
prime
s
0
false
prime
s
s
x
prime1
s
s
x
s
x
prime1
x
0
false
prime1
x
s
0
true
prime1
x
s
s
y
and
not
divp
s
s
y
x
prime1
x
s
y
divp
x
y
=
rem
x
y
0
2.2
prime1
x
s
s
y
prime1
x
s
y
prime
s
s
x
prime1
s
s
x
s
x
prime1
x
s
s
y
divp
s
s
y
x
true
prime
s
s
x
prime1
s
s
x
s
x
false
prime1
x
s
s
y
prime1
x
s
y
true
s
1
1
1
prime
1
0
and
2
0
false
0
0
true
0
0
prime
1
0
0
0
0
=
2
0
prime1
2
2
0
prime1
2
0
rem
2
0
divp
2
0
divp
2
0
not
1
0
prime1
x
s
s
y
divp
s
s
y
x
false
NaTT
certifiable-1.6