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