UVA230 图书管理系统 Borrowers

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=4&page=show_problem&problem=166 [PDF](https://uva.onlinejudge.org/external/2/p230.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA230/080bb4c03724a95130bfbcbf99ca56637343b6dc.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA230/09a2dbdba94471eaf8b74e77ff5188cc2fa76b1a.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA230/eea5cbbfe48805b94128530790d4e152ce9ed9a8.png)