UVA12978 Incredulous Ed

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=862&page=show_problem&problem=4857 [PDF](https://uva.onlinejudge.org/external/129/p12978.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12978/bdf07e0d87dca11078a74d901f3f78b6f6d7187d.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12978/7c46d1e482539583860aa52a00e8025f042206af.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12978/9561d0889b8eaa63149dc10fce4281202d1d67fa.png)