
0 0 0  0 7 0  9 4 0
0 7 0  0 9 0  0 0 5
3 0 0  0 0 5  0 7 0

0 8 7  4 0 0  1 0 0
4 6 3  0 8 0  0 0 0
0 0 0  0 0 7  0 8 0

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

hard 
any comments may be put here
following data...

