c
c
b
x1
a
c
b
x1
a
c
b
a
x1
b
c
c
x1
b
a
c
x1
a
b
c
a
x1
b
c
a
x1
c
a
b
x1
2.2
a
c
b
a
x1
c
c
x1
b
a
c
x1
c
a
x1
b
c
a
x1
c
a
b
x1
b
c
a
x1
b
x1
b
a
c
x1
a
x1
b
c
a
x1
a
b
x1
b
a
c
x1
b
c
a
x1
a
c
b
a
x1
c
x1
a
c
b
a
x1
b
c
c
x1
c
c
b
x1
a
c
b
x1
b
a
c
x1
a
b
c
a
x1
true
b
a
c
x1
a
b
c
a
x1
c
c
b
x1
a
c
b
x1
a
c
b
a
x1
b
c
c
x1
a
c
b
a
x1
c
x1
b
c
a
x1
b
x1
b
c
a
x1
c
a
b
x1
b
a
c
x1
c
a
x1
b
a
c
x1
b
c
a
x1
b
c
a
x1
a
b
x1
b
a
c
x1
a
x1
a
c
b
a
x1
c
c
x1
true
a
1
1
0
b
1
1
2438
c
1
1
0
c
1
1
0
a
1
1
0
b
1
1
2438
b
c
a
x1
a
b
x1
b
a
c
x1
b
c
a
x1
b
c
a
x1
c
a
b
x1
b
c
a
x1
b
x1
a
c
b
a
x1
b
c
c
x1
c
c
b
x1
a
c
b
x1
b
a
c
x1
a
b
c
a
x1
b
c
a
x1
c
a
b
x1
c
c
b
x1
a
c
b
x1
b
a
c
x1
a
b
c
a
x1
a
c
b
a
x1
b
c
c
x1
b
c
a
x1
b
x1
b
c
a
x1
a
b
x1
b
c
a
x1
c
a
b
x1
c
c
b
x1
a
c
b
x1
b
a
c
x1
b
c
a
x1
b
a
c
x1
a
b
c
a
x1
a
c
b
a
x1
b
c
c
x1
true
2
1
a
1
0
1
0
0
1
0
0
b
1
0
31825
c
1
0
0
1
0
1
0
31825
c
1
0
0
1
0
1
0
31825
a
1
0
0
0
1
1
1
0
b
1
1
31825
a
c
b
a
x1
b
c
c
x1
b
a
c
x1
a
b
c
a
x1
b
a
c
x1
b
c
a
x1
b
c
a
x1
a
b
x1
b
c
a
x1
b
x1
b
c
a
x1
c
a
b
x1
c
c
b
x1
a
c
b
x1
b
a
c
x1
a
b
c
a
x1
a
c
b
a
x1
b
c
c
x1
b
c
a
x1
b
x1
b
c
a
x1
a
b
x1
b
a
c
x1
b
c
a
x1
b
a
c
x1
a
b
c
a
x1
a
c
b
a
x1
b
c
c
x1
true
2
1
a
1
0
1
0
0
1
0
0
b
1
0
2
c
1
0
1
1
0
1
0
1
c
1
0
0
1
0
1
0
31825
a
1
1
0
0
0
1
1
31825
b
1
2
31825
b
a
c
x1
b
c
a
x1
b
c
a
x1
b
x1
b
c
a
x1
c
a
b
x1
c
c
b
x1
a
c
b
x1
b
a
c
x1
a
b
c
a
x1
a
c
b
a
x1
b
c
c
x1
b
c
a
x1
b
x1
b
a
c
x1
b
c
a
x1
true
Failed!
NaTT
certifiable-1.6