2
2
0
9
0
2
0
0
0
2
0
2
9
2
2
2
0
2
0
2
0
2
2
0
2
0
2
2
2
2
2
2
2
0
2
0
0
0
0
2
0
2
2
7
0
0
2
2
2
2
0
9
0
0
0
0
2
2
0
0
2
2
0
0
0
2
2
0
0
0
0
2
2
0
2
2
0
0
2
1
2
2
2
0
2
2
1
0
2
4
2
0
0
0
2
0
0
2
0
0
2
0
2
2
0
0
2
0
0
2
1
2
2
2
0
0
1
0
2
2
0
0
0
0
2
0
2
0
2
2
2
0
0
0
2
2
2
0
2
0
2
2
2
0
2
0
2
2
2
2
0
0
0
0
0
2
0
0
0
0
2
2
0
0
2
2
2
0
0
2
0
1
0
0
2
0
0
2
2
2
0
2
9
2
2
0
2
0
4
0
2
0
2
1
0
0
0
2
0
0
2
2
0
2
2
2
0
2
2
2
2
0
0
2
0
0
2
2
0
0
2
2
2
0
2
2
0
2
2
0
0
2
0
0
0
2
0
2
0
0
0
2
0
2
0
0
2
9
2
2
2
0
0
2
0
2
0
2
0
0
0
2
0
2
0
0
2
0
0
0
0
0
0
0
0
0
0
9
0
0
2
0
0
2
2
0
2
0
