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