0
0
0
2
4
4
0
0
4
0
2
2
0
4
0
2
2
4
4
0
2
4
4
2
4
4
0
0
2
2
2
0
4
4
0
4
2
2
2
2
2
2
2
2
2
2
0
2
0
2
2
2
0
2
4
2
2
0
4
0
4
2
0
4
0
2
2
0
0
0
4
4
4
0
6
2
4
4
4
0
2
2
2
0
0
2
2
2
2
0
0
2
2
0
4
2
2
0
2
17
17
4
0
2
0
0
0
4
2
0
16
2
0
0
2
4
2
4
6
4
2
12
0
2
2
0
4
0
0
2
4
0
0
2
0
2
4
2
2
0
0
7
0
2
2
4
2
0
2
4
2
2
0
0
0
2
0
0
0
4
0
14
2
0
4
2
2
0
8
4
16
2
2
0
2
4
2
0
4
2
2
2
0
4
0
0
0
2
2
2
0
2
0
4
0
0
2
2
0
0
4
4
0
2
16
2
2
0
0
2
0
0
2
2
0
2
4
2
4
0
0
2
0
0
4
0
4
4
2
0
6
2
2
0
2
4
6
2
2
0
2
0
16
4
0
0
0
14
2
2
2
4
0
0
0
0
2
4
2
0
2
0
2
4
2
2
0
0
0
2
0
0
0
0
2
0
2
16
0
2
0
6
2
2
0
0
4
0
