7
0
0
9
0
0
4
0
0
4
0
0
6
0
0
2
0
0
4
0
0
9
0
0
6
2
2
9
2
3
4
0
0
9
1
0
5
0
0
4
0
0
2
0
0
4
0
0
3
7
5
8
5
3
4
0
1
20
6
3