1
0
7
1
7
0
5
0
7
0
4
1
6
0
2
0
1
0
3
0
1
0
5
0
1
0
2
0
1
0
2
0
1
0
1
0
1
0
1
4
4
0
3
0
2
0
7
0
6
0
8
0
2
7
2
7
2
0
2
0
1
0
1
1
1
0
1
1
1
0
1
0
2
0
1
0
2
0
1
0
0
0
0
0
0
0
3
0
0
1
4
1
1
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
