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