a
s
x1
s
s
s
p
s
b
p
p
s
s
x1
b
s
x1
s
s
s
p
p
s
s
c
p
s
p
s
x1
c
s
x1
p
s
p
s
a
p
s
p
s
x1
p
p
s
x1
p
x1
p
s
x1
x1
2.2
b
s
x1
p
s
s
c
p
s
p
s
x1
c
s
x1
p
s
p
s
a
p
s
p
s
x1
a
s
x1
p
p
s
s
x1
c
s
x1
p
s
p
s
x1
a
s
x1
p
s
b
p
p
s
s
x1
a
s
x1
b
p
p
s
s
x1
a
s
x1
p
s
s
x1
c
s
x1
p
s
a
p
s
p
s
x1
c
s
x1
p
s
x1
b
s
x1
p
s
x1
b
s
x1
c
p
s
p
s
x1
b
s
x1
p
p
s
s
c
p
s
p
s
x1
c
s
x1
a
p
s
p
s
x1
p
p
s
x1
p
x1
b
s
x1
p
s
p
s
x1
true
a
s
x1
b
p
p
s
s
x1
c
s
x1
a
p
s
p
s
x1
b
s
x1
c
p
s
p
s
x1
true
2
1
a
1
0
0
s
1
1
1
1
0
1
17
1
b
1
0
0
c
1
0
0
p
1
0
0
p
1
0
1
1
0
1
0
10
c
1
1
0
0
0
1
0
6
a
1
1
0
0
0
1
14
6
b
1
0
0
1
0
1
2
6
p
p
s
x1
p
x1
p
s
x1
x1
b
s
x1
p
p
s
s
c
p
s
p
s
x1
false
b
s
x1
p
s
p
s
x1
false
a
s
x1
p
s
s
x1
false
a
s
x1
p
s
b
p
p
s
s
x1
false
c
s
x1
p
s
p
s
x1
false
a
s
x1
p
p
s
s
x1
false
p
p
s
x1
p
x1
true
a
1
0
s
1
1
1
b
1
0
c
1
0
p
1
1
0
p
1
1
0
c
1
0
a
1
0
b
1
0
c
s
x1
p
s
p
s
a
p
s
p
s
x1
false
b
s
x1
p
s
x1
false
c
s
x1
p
s
x1
false
c
s
x1
p
s
a
p
s
p
s
x1
false
b
s
x1
p
s
s
c
p
s
p
s
x1
false
NaTT
certifiable-1.6