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