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{ 8, 9, 12, 13, 14, 23, 24, 34 }
{ 6, 7, 10, 11, 15, 21, 22, 25, 31, 32, 33, 35 }
{ 1, 2, 3, 4, 5, 16, 17, 18, 19, 20, 26, 27, 28, 29, 30 }
{ }
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