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