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