15, 2 + 13 =, 14, 4 + 10 =, 6, 2 + 4 =, 4, 4 + 0 =, 12, 5 + 7 =, 3, 3 + 0 =, 7, 2 + 5 =, 13, 2 + 11 =, 17, 8 + 9 =, 2, 1 + 1 =

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