True: 1 + 2 = 3, 1 + 8 = 9, 12 + 7 = 19, 4 + 1 = 5, 2 + 5 = 7, False: 16 + 12 = 13, 15 + 5 = 5, 8 + 2 = 20, 20 + 1 = 2, 10 + 2 = 14,

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