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Anonymous
12345678 + 12345678 = 2*12345678 = 12345678/5 *10 = 246,913,578
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10,000,000,001
123456789 + 123456789 = 246913578
that answer would be 968,823,914
123456789 +987654321 =1111111110
123456789 + 36853168 = 160309957