UVA111 History Grading

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=3&page=show_problem&problem=47 [PDF](https://uva.onlinejudge.org/external/1/p111.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA111/5d2a71a05bd8cf7fb9a417c6e37390e0c5131d53.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA111/b88371815df65e72aa766684dc316cf68d07e088.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA111/321974c802e4d58c9b66f2314ca0ffe275dcef81.png)