0
6
4
0
0
2
2
4
4
2
0
0
0
0
0
0
6
2
2
0
0
0
0
0
2
2
2
0
2
0
0
2
2
0
2
0
2
6
2
2
0
0
0
4
4
2
0
0
2
0
2
2
0
0
2
2
2
0
0
2
2
0
4
0
2
0
2
0
2
0
6
0
2
0
2
2
2
2
2
0
0
2
2
0
0
0
0
4
0
0
0
0
4
0
0
0
0
0
0
0
2
0
8
2
2
0
0
2
4
0
2
2
6
2
10
0
0
2
2
4
2
2
4
2
2
2
0
2
0
2
2
0
2
2
0
2
4
0
2
0
2
2
0
0
2
4
0
0
2
0
0
0
0
0
4
0
2
4
0
2
4
0
2
2
2
2
2
4
2
2
2
0
4
2
0
0
2
2
2
19
0
0
0
2
0
2
2
0
0
4
0
2
2
36
0
2
0
2
2
4
0
2
0
2
4
2
2
0
0
2
2
2
2
2
2
2
0
0
0
2
0
0
0
0
0
0
2
4
0
2
0
0
0
0
2
0
4
0
0
2
2
0
4
2
2
0
4
4
4
2
18
0
4
0
0
2
2
2
2
2
0
0
0
0
0
2
4
0
0
2
2
0
4
0
4
2
2
0
8
0
0
2
0
4
2
4
2
0
