12 + ? = 14, 2, 3, 5, 9, ? + 11 = 13, 1, 2, 6, 7, ? + 1 = 12, 7, 9, 10, 11, ? + 1 = 6, 2, 5, 8, 11, ? + 6 = 14, 2, 4, 7, 8

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