20
12 11 14 16 15 20 19 18 17 13 
11 13 17 16 18 19 20 14 15 12 
16 12 14 18 11 13 20 15 17 19 
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13 11 18 17 16 14 20 15 19 12 
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6 5 4 1 2 8 10 3 7 9 
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10 1 5 3 9 7 2 6 8 4 
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