True, 2 + 9 = 11, 6 + 11 = 17, 0 + 7 = 7, 9 + 5 = 14, 1 + 1 = 2, 6 + 3 = 9, 5 + 1 = 6, 4 + 4 = 8, False, 10 + 4 = 19, 15 + 1 = 1, 18 + 2 = 6, 5 + 2 = 3, 20 + 6 = 12, 13 + 11 = 19, 14 + 1 = 2.

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