UVA755 487--3279

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=9&page=show_problem&problem=696 [PDF](https://uva.onlinejudge.org/external/7/p755.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA755/ea2991017d211598c35251fc2b1d00817a74c8cc.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA755/cb7abb9bcae30405689263cb3874006ed6bf071c.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA755/b464eff0e27cc3e2c6b2d659cd8dfbcbde5f7a20.png)