1
0
x1
0
0
0
1
x1
0
1
x1
1
x1
1
1
x1
0
0
0
0
x1
0
0
x1
0
x1
2.2
1
1
x1
0
0
0
x1
1
0
x1
0
0
1
x1
1
0
x1
0
1
x1
1
0
x1
0
0
0
1
x1
1
1
x1
0
0
x1
1
1
x1
0
0
0
0
x1
1
0
x1
1
x1
1
1
x1
0
x1
true
1
0
x1
1
x1
true
0
1
0
1
1
0
0
1
1
1
1
1
1
0
1
1
x1
0
x1
false
1
1
x1
0
0
0
0
x1
false
1
1
x1
0
0
x1
false
1
0
x1
0
0
1
x1
false
1
0
x1
0
0
0
1
x1
false
1
0
x1
0
1
x1
false
1
1
x1
0
0
0
x1
false
NaTT
certifiable-1.6