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