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