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