0
4
2
4
0
2
0
6
0
0
4
18
2
2
0
0
0
2
0
0
2
4
0
2
4
4
0
2
0
2
0
4
0
2
2
4
2
2
2
0
2
2
0
6
4
0
0
0
0
0
0
0
0
2
0
2
2
4
2
2
6
4
4
0
6
2
2
2
2
6
4
0
0
0
18
6
4
0
18
2
2
4
4
0
2
0
0
0
0
2
0
4
4
0
0
2
4
0
4
0
0
2
6
2
2
19
2
0
0
4
2
2
2
2
0
4
0
4
6
0
2
2
4
0
0
2
4
2
2
0
0
4
4
2
2
2
0
2
4
2
4
2
0
2
2
6
2
2
0
2
0
0
2
4
2
4
2
0
6
0
2
2
6
8
0
0
2
0
2
6
4
2
2
4
0
0
0
0
2
2
2
6
4
4
2
2
0
2
0
0
4
4
16
0
0
6
2
0
2
2
6
4
0
0
4
2
6
0
4
2
6
0
2
2
2
2
4
4
2
6
2
22
2
0
4
4
0
0
2
2
0
2
2
0
0
2
2
2
2
0
2
2
2
2
2
29
37
2
4
0
0
2
0
4
4
0
2
0
2
2
4
2
2
2
0
4
2
2
0
0
2
2
4
2
2
2
0
0
2
4
4
0
2
0
0
0
4
4
