2
2
0
4
4
0
0
4
2
0
6
0
0
2
2
0
4
4
6
0
0
2
0
4
0
2
4
2
4
0
0
0
0
0
0
2
2
4
0
0
4
2
0
4
6
0
6
2
0
0
2
8
2
0
2
2
4
2
2
0
2
2
2
2
6
2
0
2
4
2
2
4
2
0
4
4
2
0
0
0
4
0
6
4
2
6
4
0
0
0
2
2
0
2
2
4
2
4
4
0
2
2
2
4
2
0
4
2
0
2
0
0
0
2
6
2
16
4
2
2
6
0
2
2
8
6
2
0
8
4
6
4
0
6
2
6
4
17
2
0
4
0
2
0
4
0
4
6
4
2
6
0
6
4
2
2
0
0
4
0
2
2
4
0
6
4
0
2
6
0
6
2
0
2
0
2
2
4
0
2
6
4
4
2
4
0
6
2
2
2
2
0
2
2
0
4
0
2
0
4
0
2
2
2
4
2
0
4
2
2
2
2
4
4
0
4
10
2
4
2
0
4
6
15
0
2
0
2
2
18
2
4
2
0
2
2
2
4
6
2
2
0
0
0
0
2
0
4
2
0
14
2
4
2
2
0
0
0
6
4
4
2
4
2
2
2
2
2
0
2
4
2
0
6
4
0
0
0
0
2
0
4
0
0
2
2
4
0
