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1 15 15 15 15 15 15 1 15
2 1 1 1 16 16 16 2 1
3 2 2 2 17 17 17 3 2
4 3 3 3 18 18 18 9 3
5 4 4 4 19 19 19 6 6
6 6 6 5 20 20 20 0 9
7 9 7 6 0 0 21 0 12
8 10 9 7 0 0 0 0 0
9 11 10 8 0 0 0 0 0
10 12 11 9 0 0 0 0 0
11 13 12 10 0 0 0 0 0
12 0 13 11 0 0 0 0 0
13 0 0 12 0 0 0 0 0
14 0 0 13 0 0 0 0 0
15 0 0 14 0 0 0 0 0