0
4
0
2
4
2
2
0
2
0
0
0
2
2
0
0
0
0
0
0
0
0
0
0
0
2
0
2
4
0
2
8
2
0
2
2
0
0
6
0
0
0
2
0
4
0
0
2
2
2
6
2
0
4
0
4
0
0
2
0
2
2
0
0
2
0
0
2
0
2
0
2
0
0
0
0
0
0
0
0
2
0
0
2
6
2
10
0
2
2
4
2
0
0
0
2
4
0
2
4
0
2
0
4
2
4
0
0
2
0
6
0
2
2
2
4
0
0
0
4
4
0
2
2
4
2
0
0
0
8
0
2
0
2
0
4
2
0
4
2
0
8
4
2
4
4
0
0
2
2
0
4
2
0
0
0
2
4
0
0
0
0
2
2
2
0
2
10
4
0
4
0
0
2
0
0
4
0
4
4
0
2
0
0
2
0
2
0
0
2
0
11
4
4
2
2
2
0
0
0
0
0
2
0
2
4
0
0
2
2
0
6
2
4
0
0
0
0
2
0
2
0
0
2
0
4
0
2
0
0
0
0
0
4
2
0
4
2
0
2
6
0
54
2
2
2
4
2
2
0
0
0
0
2
0
0
2
8
2
2
0
0
0
0
4
0
6
0
0
2
0
2
2
2
0
0
0
2
0
2
4
0
0
2
4
0
0
4
