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

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

5 0 0  1 0 0  4 0 0
0 9 0  0 0 0  0 2 0
0 0 0  0 0 0  0 0 1
