2
0
2
0
4
2
0
4
0
6
0
2
6
2
0
2
2
2
0
0
0
4
0
0
0
2
0
2
4
2
2
2
2
2
0
0
0
0
0
2
0
2
0
0
2
2
2
4
10
0
0
0
2
2
2
0
0
0
0
2
0
0
4
0
2
2
0
2
2
0
0
2
2
2
0
2
2
2
0
2
0
4
2
2
2
2
2
0
2
0
2
2
2
0
0
0
2
2
2
2
2
0
2
2
2
2
2
4
0
0
2
0
0
0
0
2
0
2
0
2
0
2
2
2
0
0
0
0
0
2
2
2
4
2
6
2
4
0
0
0
0
2
2
0
0
0
2
2
0
2
0
0
0
2
0
4
0
0
2
0
4
2
4
0
2
2
0
2
0
2
2
2
0
0
0
2
0
2
2
0
4
0
2
2
4
2
0
0
2
2
2
0
0
0
2
2
0
2
2
0
0
2
2
2
4
0
2
0
0
2
2
0
4
0
4
0
2
0
0
4
0
0
0
2
0
0
0
0
2
4
0
0
2
2
0
2
2
0
2
2
0
0
0
4
0
0
0
2
0
0
2
0
2
2
0
0
2
0
0
0
2
2
0
0
2
8
0
0
2
2
2
0
0
0
0
0
0
0
2
2
2
2
2
0
2
0
0
0
