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