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