UVA404 Radar Scopes

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=6&page=show_problem&problem=345 [PDF](https://uva.onlinejudge.org/external/4/p404.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA404/3e04981f89dde09282a4faea2914edd325eb30a7.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA404/ba6d2bb8821c697960ad161b9d666c02117be9d3.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA404/cbbaf4aba90558e2d027b251f3915c4bbe6ea466.png)