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