0
0
2
4
4
2
0
0
4
0
0
2
4
0
0
6
4
2
2
8
0
4
0
0
0
2
0
0
0
0
2
0
2
0
0
0
0
0
4
2
2
2
2
6
4
0
2
0
0
2
2
0
2
0
0
0
0
2
0
2
2
0
0
0
2
2
0
0
0
2
2
0
0
0
2
2
0
2
0
0
0
2
2
2
0
2
2
0
0
4
2
30
2
0
2
2
2
2
0
2
0
2
2
4
2
2
0
2
2
0
2
2
0
2
2
2
2
6
2
2
0
2
0
0
2
2
2
4
2
0
0
0
2
2
0
0
0
0
0
2
0
0
0
0
0
2
0
0
2
4
0
0
0
2
0
0
0
0
2
2
0
0
0
32
2
2
0
2
0
2
2
0
0
0
0
0
4
2
2
2
2
0
0
2
4
0
4
2
2
4
0
0
0
0
4
2
0
2
2
0
2
0
0
0
2
0
0
0
0
2
2
0
0
0
2
0
2
2
0
2
6
2
67
2
0
0
0
0
0
2
2
0
2
2
0
2
2
0
0
4
0
2
0
0
4
0
2
2
2
2
4
2
0
2
2
0
2
0
0
0
0
0
2
4
2
2
0
2
2
0
2
2
2
2
0
0
2
0
0
2
0
2
4
2
2
4
2
0
