x
x3
x5
x5
1 |
0
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
1 |
0