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

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

2 0 4  0 0 0  8 0 0
0 6 0  0 8 5  0 0 0
0 0 0  2 0 0  1 0 0

hard
