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