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