0
2
0
4
2
2
0
4
2
2
2
4
4
2
2
4
0
0
2
0
0
4
0
2
0
0
2
6
2
0
4
2
0
2
4
2
7
0
0
2
0
2
0
2
4
2
4
2
0
4
0
2
4
0
0
4
2
2
8
4
0
2
2
4
0
2
4
2
0
0
4
2
2
2
0
0
2
2
0
0
9
0
4
0
2
0
0
0
2
2
7
2
2
4
0
2
0
4
4
0
4
2
2
0
2
0
0
2
0
4
2
0
0
2
4
2
4
2
4
9
4
4
0
0
2
0
2
2
2
2
2
2
0
0
2
4
4
2
2
4
4
0
2
2
0
4
0
0
0
0
2
6
2
4
2
2
0
6
2
0
8
2
0
4
4
4
0
2
2
2
4
2
2
0
2
4
6
4
0
0
0
2
2
2
2
4
4
4
0
0
2
4
0
2
4
2
2
2
4
0
2
0
2
4
4
0
0
6
2
0
2
0
0
0
4
2
0
0
0
0
2
4
2
4
2
0
2
6
2
2
2
0
2
0
0
4
0
4
4
0
2
0
2
2
4
0
0
2
2
2
2
2
6
0
4
4
2
0
2
0
0
4
2
0
4
5
0
4
2
2
0
4
0
2
2
2
2
0
4
2
8
0
2
2
2
0
2
0
