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