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