p
s
x
x
fac
0
s
0
fac
s
x
times
s
x
fac
p
s
x
times
times
2.2
times
x
y
times
y
x
times
x
times
y
z
times
times
x
y
z
fac
s
x
p
s
x
fac
s
x
fac
p
s
x
fac
s
x
fac
p
s
x
true
fac
1
1
s
1
1
1
p
1
0
p
1
0
0
0
0
times
2
0
fac
1
0
s
1
1
7720
p
1
1
p
1
1
0
0
0
0
times
2
0
fac
1
1
fac
s
x
fac
p
s
x
p
s
x
x
fac
s
x
p
s
x
false
NaTT
certifiable-1.6