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