UVA753 UNIX插头 A Plug for UNIX

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=9&page=show_problem&problem=694 [PDF](https://uva.onlinejudge.org/external/7/p753.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA753/bd8d54abcc7626a52e03f403121ef0c4cca175ba.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA753/85bc1d905b0ad29df832c8d7397d8a7fd9dca5b1.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA753/bde1b0921a746e5875af277006a66198bd24ffbb.png)