
0 0 0  0 0 0  0 0 0
0 0 0  0 0 8  0 0 3
0 7 3  0 0 0  0 1 4

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

1 6 0  0 0 0  8 9 0
7 0 0  4 0 0  0 0 0
0 0 0  0 0 0  0 0 0

hard
