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