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