9
0
1
0
1
1
2
0
1
0
2
0
1
9
0
1
0
1
0
1
0
2
0
2
0
2
20
0
2
0
1
1
8
0
2
0
4
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
