UVA401 回文词 Palindromes

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=6&page=show_problem&problem=342 [PDF](https://uva.onlinejudge.org/external/4/p401.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA401/b6c215fa795465f551b5ca7a97ddc3a7f22e50ab.png)

Input Format

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Output Format

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