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