UVA12213 Camera in the Museum

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=244&page=show_problem&problem=3365 [PDF](https://uva.onlinejudge.org/external/122/p12213.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12213/46785304c04389e994c8c4b67beeb489ec640b65.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12213/124850e68f5e75a4ca813bf0194702fa3faca9bd.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12213/668bc48b252543ac6bb994fa2924f4be2a5884d0.png)