UVA11663 GrayInc

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=78&page=show_problem&problem=2710 [PDF](https://uva.onlinejudge.org/external/116/p11663.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11663/2a63c7a410f51202960526d964f54f2cf073c049.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11663/42bdcee236b92476761d1f7daae295b356db8221.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11663/478c604cb5e754fe3e9bd89555fdfec467c85d7c.png)