0
0
0
4
0
0
0
0
0
0
4
4
0
0
0
0
0
0
0
0
0
0
0
4
6
0
0
0
4
0
0
0
0
0
0
0
0
0
0
0
4
0
0
0
0
4
0
0
0
4
0
0
0
0
0
0
0
0
0
4
0
0
4
0
0
0
4
0
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
0
0
0
0
4
4
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
0
0
2
0
0
0
0
0
0
0
0
0
0
0
4
0
0
6
0
0
0
0
4
0
0
0
4
0
0
4
4
0
0
0
0
0
0
0
0
0
0
4
0
4
4
0
4
0
0
4
0
2
4
4
4
0
0
0
0
0
0
0
0
0
0
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
0
4
0
0
0
0
4
0
0
0
0
0
0
4
0
0
0
0
4
0
0
0
0
0
4
0
0
0
4
0
4
0
0
0
0
0
0
0
0
0
0
0
0
0
4
0
4
4
4
0
4
4
0
0
0
0
0
4
0
0
0
4
4
0
0
0
4
0
4
0
0
0
0
0
0
0
0
0
0
0
4
0
0
0
0
4
0
0
0
0
0
0
4
0
0
0
0
4
0
0
0
0
0
0
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
0
0
0
0
0
0
0
0
0
0
4
0
4
0
0
0
0
0
0
0
0
0
0
4
2
0
0
2
0
0
0
0
0
4
4
7
6
0
4
0
4
4
4
0
0
0
0
0
0
0
4
4
0
0
4
0
0
4
0
0
0
0
0
2
0
0
0
0
4
0
4
0
0
0
0
0
0
0
0
0
4
0
0
7
0
0
0
2
0
0
2
0
0
0
0
0
0
4
0
0
0
0
0
0
0
0
0
0
4
0
0
0
4
0
0
0
0
0
0
0
0
0
0
4
0
0
0
0
0
4
4
0
4
0
0
0
4
0
4
0
0
6
0
0
0
0
0
0
0
0
0
0
0
0
4
0
0
0
0
0
0
0
2
0
0
0
0
0
0
0
0
0
4
0
0
0
0
4
0
0
0
0
0
0
0
0
0
0
2
0
0
4
0
0
0
0
0
0
4
0
0
0
2
0
0
4
0
0
0
2
0
0
0
0
4
2
4
4
0
0
0
4
2
4
0
0
0
4
0
0
0
4
4
4
0
0
0
0
0
0
0
0
0
4
4
0
0
2
0
4
0
0
0
0
4
0
0
0
7
0
0
0
0
4
0
4
4
0
0
0
0
0
0
0
0
0
4
0
0
6
0
0
0
4
0
0
0
0
0
0
0
4
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
0
0
0
0
0
0
0
6
4
0
4
0
0
0
0
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
4
0
0
0
4
0
0
0
0
0
0
0
0
0
0
0
0
0
4
0
0
0
4
0
0
0
0
0
0
4
0
4
0
0
0
0
0
0
0
6
0
0
0
4
0
2
0
0
0
0
4
0
4
4
0
4
0
0
0
0
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
6
0
0
0
6
0
0
0
0
0
0
0
4
0
0
0
0
4
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
4
0
0
0
0
4
0
4
0
0
0
0
0
4
0
0
4
0
0
0
0
0
0
0
0
0
0
4
0
0
0
0
0
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
0
0
0
0
0
0
4
0
0
6
0
4
4
0
0
0
0
0
0
0
0
0
0
0
0
4
4
0
0
0
0
0
0
0
0
0
0
0
4
0
0
0
0
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
0
0
0
0
0
0
0
0
0
0
0
2
0
6
0
0
0
0
4
0
0
0
4
0
0
0
0
0
0
0
4
4
4
0
0
0
0
0
0
0
0
0
4
0
0
0
2
4
0
0
0
0
0
0
6
0
4
0
0
0
0
0
0
0
4
0
0
0
0
2
0
0
0
0
0
0
0
0
4
0
0
0
0
0
0
0
0
0
4
4
0
0
0
0
0
0
0
0
0