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