UVA12523 Lazy Professor

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=441&page=show_problem&problem=3968 [PDF](https://uva.onlinejudge.org/external/125/p12523.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12523/6810a1a33960c1f6a922f01cb9a7e66c962ea48e.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12523/3cb5c7efc7a7d08cec1606438cd57da0a7bdf43d.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12523/4b252c95b79e79f4e78f6b21091a51d74bb5ba7e.png)