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