UVA899 Colour Circles

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=10&page=show_problem&problem=840 [PDF](https://uva.onlinejudge.org/external/8/p899.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA899/642190b92fdcceee33ed805754a7e5c3ce6e3c73.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA899/1565f57ae8be01dd2d7e94384ae488824c3e72a2.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA899/d75d4cd9a0c28fea17b75745263dcff58ea0d02a.png)