x
x
1 |
0
0 |
1
4 |
10
2 |
3
x5
0 |
1
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x5
x4
x4
x4
x4
x4
x4
x4
x3
x3
x3
x3