0
2
4
2
0
4
0
0
0
0
0
0
2
2
4
2
2
0
4
0
2
2
2
0
4
2
4
0
2
2
2
0
4
2
0
2
2
1
2
0
2
0
2
0
2
0
0
0
4
2
6
0
6
2
2
2
0
4
2
0
0
4
2
2
2
4
0
4
2
2
2
4
6
0
2
2
2
0
2
2
4
0
2
2
2
2
4
2
0
2
6
4
0
2
4
4
0
0
0
0
4
0
2
2
0
2
0
0
2
0
2
4
4
4
0
0
4
0
4
0
0
2
4
2
2
2
0
4
6
0
2
2
2
4
2
0
0
2
4
4
4
4
0
2
7
4
2
2
2
0
4
0
2
0
2
0
5
0
2
4
4
2
0
2
4
0
0
2
2
0
2
0
4
0
2
0
2
0
9
4
0
0
4
2
2
2
6
0
2
0
1
4
0
2
2
6
2
2
0
2
2
0
4
2
2
2
2
2
2
0
0
2
2
0
2
2
6
2
2
2
0
0
0
0
2
2
0
2
2
37
0
0
2
2
2
4
0
2
0
0
0
2
2
0
0
2
0
0
2
4
0
2
2
2
0
4
0
0
0
2
2
2
0
0
0
0
0
0
2
2
10
0
7
0
2
0
2
2
0
2
2
0
6
0
0
2
2
6
