UVA12797 Letters

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=823&page=show_problem&problem=4662 [PDF](https://uva.onlinejudge.org/external/127/p12797.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12797/588c0cd8b438da855f1dd9e9ea1077ccd27b8e45.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12797/132f56244bebf285d2bb09175fee367b3fd0174a.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12797/607435c4c8f09cd338ea1da3e01d83be53ab5a22.png)