0, 3 + ? = 3, 8, ? + 11 = 19, 2, 2 + ? = 4, 3, ? + 15 = 18, 1, ? + 14 = 15, 18, 2 + ? = 20, 10, ? + 1 = 11, 6, 8 + ? = 14, 5, ? + 2 = 7, 4, 8 + ? = 12, 16, ? + 4 = 20, 14, 3 + ? = 17, 11, ? + 7 = 18, 12, ? + 7 = 19, 9, ? + 10 = 19

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