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