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