UVA11878 Homework Checker

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=226&page=show_problem&problem=3000 [PDF](https://uva.onlinejudge.org/external/118/p11878.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11878/ba86027a424824abcfcd139cdac0d78ce6f72982.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11878/d42bee66a18dd37c724517436520dd0636a6970b.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11878/74684343e01307e67943878dcf3468a738e92095.png)