0
2
4
0
2
0
0
4
0
0
2
0
2
4
2
0
0
4
0
2
0
0
0
6
0
4
0
2
2
0
0
0
0
4
2
4
0
2
0
0
2
4
2
4
2
0
0
0
2
2
0
21
0
2
4
2
35
0
0
2
0
2
2
0
0
0
0
2
0
0
0
0
2
0
0
2
0
0
0
2
2
2
0
0
0
2
0
0
0
2
4
0
0
2
2
2
0
0
0
0
0
2
2
2
8
0
2
0
0
0
2
0
0
0
4
2
2
6
2
4
2
6
0
0
2
4
4
0
0
6
2
0
2
0
2
2
4
0
2
4
6
4
0
2
2
2
0
2
2
2
2
2
0
2
2
0
0
29
0
4
0
2
2
4
4
0
0
0
2
0
0
2
2
2
2
0
4
0
4
2
4
2
2
0
2
0
2
2
0
2
0
4
0
0
2
2
2
2
4
0
2
4
4
2
0
6
0
0
0
2
0
2
0
2
2
2
2
0
2
2
2
0
2
0
2
2
0
0
4
4
2
0
2
0
0
6
6
0
0
2
0
0
0
0
0
0
4
2
33
6
0
0
2
2
0
0
0
0
0
0
0
6
0
2
2
2
0
4
0
6
2
2
4
2
2
2
2
2
0
0
8
0
2
0
0
2
2
0
