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