q
0
x1
p
p
s
s
0
s
s
s
s
x1
q
s
x1
p
p
s
s
s
s
s
s
r
p
p
s
s
x1
r
0
x1
p
s
p
s
0
p
p
p
s
s
s
x1
r
s
x1
p
s
p
s
s
q
p
s
p
s
x1
p
p
s
x1
p
x1
p
s
x1
x1
p
0
x1
0
s
s
s
x1
2.2
q
s
x1
p
s
s
s
s
s
s
r
p
p
s
s
x1
p
p
s
x1
p
x1
q
0
x1
p
s
s
0
s
s
s
s
x1
r
0
x1
p
p
p
s
s
s
x1
r
0
x1
p
s
s
s
x1
q
0
x1
p
p
s
s
0
s
s
s
s
x1
r
s
x1
p
s
p
s
s
q
p
s
p
s
x1
r
0
x1
p
s
p
s
0
p
p
p
s
s
s
x1
r
0
x1
p
p
s
s
s
x1
q
s
x1
p
s
s
x1
r
s
x1
p
s
p
s
x1
r
s
x1
q
p
s
p
s
x1
q
s
x1
r
p
p
s
s
x1
q
s
x1
p
p
s
s
s
s
s
s
r
p
p
s
s
x1
r
0
x1
p
s
0
p
p
p
s
s
s
x1
r
s
x1
p
s
s
q
p
s
p
s
x1
q
s
x1
p
p
s
s
x1
r
s
x1
p
s
x1
true
q
s
x1
r
p
p
s
s
x1
r
s
x1
q
p
s
p
s
x1
true
Failed!
NaTT
certifiable-1.6