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