0 7 9 0 0 14
7 0 10 15 0 0
9 10 0 11 0 2
0 15 11 0 6 0
0 0 0 6 0 9
14 0 2 0 9 0
-
0 0 0 0 0 14 0 0 0 0
0 0 19 0 1 0 1 0 0 0
0 19 0 7 0 4 0 9 0 0
0 0 7 0 0 17 0 13 13 2
0 1 0 0 0 0 12 0 0 0
14 0 4 17 0 0 14 0 0 0
0 1 0 0 12 14 0 7 8 8
0 0 9 13 0 0 7 0 17 20
0 0 0 13 0 0 8 17 0 0
0 0 0 2 0 0 8 20 0 0