4
0
4
8
15
2
0
0
2
2
2
2
0
0
21
6
0
2
2
4
0
0
0
2
8
6
2
4
2
0
0
2
2
2
0
0
0
2
4
4
6
0
0
4
0
0
0
0
2
2
0
21
10
2
4
2
2
2
6
0
4
0
2
4
4
13
2
0
0
2
2
2
2
4
4
4
2
4
2
0
0
2
2
6
0
2
0
4
2
2
0
4
0
0
0
8
6
0
2
0
2
2
4
4
4
8
0
0
6
2
4
4
0
0
2
0
0
2
6
0
0
2
19
8
0
4
4
2
4
16
2
4
4
4
4
2
4
2
2
2
2
0
2
2
0
0
0
2
4
2
2
2
0
4
0
0
4
6
2
2
4
2
4
0
2
2
0
0
2
0
4
0
0
2
4
2
2
6
21
2
4
0
0
0
6
0
4
14
4
0
0
4
2
4
4
4
0
4
4
2
4
0
0
4
2
6
2
2
0
4
0
4
4
4
0
0
0
2
2
0
2
0
2
6
2
6
2
2
0
2
2
0
4
0
4
2
0
2
0
2
4
4
2
2
0
0
0
2
0
6
2
0
4
4
4
4
0
0
4
4
4
2
0
8
0
4
2
4
2
0
6
4
2
2
0
2
4
8
0
2
0
6
2
4
4
6
0
2
