0
0
1
0
0
1
0
0
1
0
0
1
0
2
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
4
2
1
0
0
1
0
0
2
0
2
20
18
16
21
0
0
1
