https://www.acmicpc.net/problem/18793Baekjoon Online JudgeBaekjoon Online Judgewww.acmicpc.net
https://arxiv.org/abs/1602.06208Every positive integer is a sum of three palindromesFor integer $g\ge 5$, we prove that any positive integer can be written as a sum of three palindromes in base $g$.arxiv.org
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Killed
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