0
0
2
4
0
2
0
2
2
2
0
0
0
2
0
0
0
0
0
2
0
0
2
0
0
0
2
2
2
2
2
0
4
0
2
0
0
2
2
2
4
2
0
0
0
0
2
2
0
0
0
2
2
0
4
2
2
4
17
4
2
2
0
2
33
2
2
4
0
20
0
2
2
0
0
2
0
2
2
0
0
4
2
0
0
0
2
0
2
0
2
2
2
2
2
2
0
2
2
0
4
2
2
0
2
0
2
0
0
2
2
0
0
2
2
2
2
2
2
0
0
2
2
6
0
4
2
2
2
0
0
2
2
2
2
2
0
2
0
4
0
0
2
2
0
16
2
0
2
2
0
0
2
0
2
2
2
4
2
16
2
0
2
0
0
0
2
2
4
0
2
0
2
2
0
0
0
0
2
0
0
0
0
0
0
0
2
0
0
2
0
0
0
0
4
2
0
0
0
2
4
2
0
0
0
0
0
13
0
2
2
2
0
2
4
2
0
2
2
2
2
2
0
0
0
0
2
2
0
2
2
0
2
0
0
2
2
0
2
2
2
0
0
2
0
2
2
0
0
2
0
0
0
0
0
0
2
2
0
2
2
0
2
2
2
2
0
2
6
0
2
2
0
0
0
0
0
0
2
2
2
2
2
0
0
4
0
0
