12 + 23 =, 35, 21 + 16 =, 37, 32 + 14 = , 46, 13 + 25 = , 38, 31 + 26 = , 57, 41 + 27 = , 68, 34 + 13 = , 47, 31 + 14 = , 45, 123 + 234 = , 357, 122 + 345 = , 467.

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