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

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

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