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