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