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

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA401/765d17adb8ebb1c9f9f633813a123b3fdc93dfa5.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA401/d9c985cc6ed58c99115e4db79b3515accf10435d.png) 注意要换两次行。