2
0
2
4
4
0
0
4
0
0
0
0
0
0
2
0
2
1
2
0
0
1
2
0
2
2
0
0
2
0
0
0
2
0
0
2
0
0
0
0
1
2
0
2
0
0
2
0
4
0
4
2
2
2
9
0
0
2
2
2
0
0
2
0
0
2
2
1
0
2
2
0
0
2
0
3
0
2
2
4
2
2
0
2
4
3
0
0
2
0
0
2
0
1
1
0
1
0
1
0
1
1
0
0
1
2
0
2
0
0
1
0
0
0
0
2
4
0
3
4
0
4
0
1
0
0
0
4
0
0
0
2
2
2
2
0
2
2
2
0
0
1
2
2
2
0
2
0
0
2
0
4
2
2
0
2
2
4
1
2
1
1
0
4
2
4
0
2
2
0
2
0
1
0
0
0
0
2
2
0
0
0
2
0
2
0
0
2
0
1
0
0
2
0
0
2
2
2
4
0
0
0
1
0
0
2
2
0
0
2
0
2
0
0
1
0
0
0
10
2
0
0
0
2
0
2
1
4
2
0
0
0
1
4
0
0
0
2
1
4
1
2
2
0
0
2
1
0
0
1
4
0
2
0
0
1
0
2
1
0
2
3
0
0
2
0
2
2
2
0
2
5
0
1
2
0
0
1
0
0
1
2
8
0
0
2
2
1
