20
20 11 13 15 19 14 12 16 17 18 
11 17 19 16 15 20 14 18 12 13 
11 13 18 16 14 12 19 20 17 15 
14 15 18 17 20 19 11 12 16 13 
17 18 15 16 19 12 13 11 14 20 
15 17 16 13 12 11 14 18 19 20 
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18 11 15 12 13 20 19 14 17 16 
14 20 15 12 17 19 18 13 16 11 
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