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