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