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