0
2
0
4
2
4
0
2
2
5
0
4
4
2
6
2
6
4
2
0
2
4
2
2
2
2
0
2
2
2
2
2
0
0
2
0
2
4
0
2
2
0
2
2
0
2
0
2
4
2
2
0
4
2
0
2
2
0
0
0
2
0
3
4
2
0
4
2
4
0
0
2
0
2
0
0
2
0
4
3
0
0
2
0
9
0
4
3
2
6
4
2
0
0
2
0
0
0
2
2
2
2
2
2
0
4
0
2
2
2
0
0
2
2
2
2
0
0
2
2
0
0
2
2
2
4
2
2
2
2
2
0
4
4
0
2
2
0
0
6
2
2
0
2
2
0
2
3
0
2
3
3
2
4
0
2
4
2
0
4
0
2
4
6
4
2
2
2
2
2
2
2
2
2
6
2
0
2
2
0
0
2
0
4
4
4
2
4
2
2
2
2
2
2
0
0
2
4
2
0
4
0
2
2
3
4
2
0
3
0
2
0
0
2
4
2
0
0
4
2
2
0
0
2
2
0
0
2
0
2
2
3
0
2
0
2
0
5
0
2
2
0
6
2
0
2
0
2
2
0
2
4
4
0
0
0
4
4
2
2
2
2
4
2
3
2
0
2
0
2
4
0
4
4
0
2
0
0
2
2
2
4
2
0
3
2
0
0
