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