UVA12548 Old School Days

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=441&page=show_problem&problem=3993 [PDF](https://uva.onlinejudge.org/external/125/p12548.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12548/bff2b5b2da5b2ea996f053f93e010fd0b4f713c3.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12548/15e6bc0cc32b00d55baaad755c3a194702cfaca8.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12548/2e2510cf6d7b83d814bcd8f08837e64a186ab64f.png)