UVA10441 Catenyms

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=16&page=show_problem&problem=1382 [PDF](https://uva.onlinejudge.org/external/104/p10441.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10441/eb0df29e506ad7b79a2a1261b236ecf3f0b7da40.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10441/0c0f7a1c0f3c5745c71d08b57c2a8dbacb3f916f.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10441/befc43c5954d0bd5d4a50ee2389a929f3041976c.png)