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