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