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