1
0
1
0
5
7
1
0
1
0
1
0
1
0
3
2
1
0
3
2
1
0
1
0
1
0
1
0
2
1
2
2
3
7
3
2
1
0
2
1
3
2
1
0
1
0
1
0
4
4