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