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