UVA11171 SMS

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=23&page=show_problem&problem=2112 [PDF](https://uva.onlinejudge.org/external/111/p11171.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11171/2638a59716c7db12b56d9d3702ba4aea75eedd76.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11171/f39c7cb476a1cc847f63912d089b98ee77a77d7f.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11171/90b406e3e000e4332169c8555af7486959782885.png)