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