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