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111 breaks that rule down and up right?

111-101=10

121-111=10

I didn’t say the difference of EVERY palindrome pair is a palindrome. Just that for every palindrome, there is a match (actually many) to result in another palindrome.

111+222=333

121+303=424

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Discussion

nobody 2y ago

More explicitly, the for every palindrome p, there also exists palindromes r and q, such that p+r=q

koby 2y ago

Math is fun