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