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

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

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