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