UVA11849 CD

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=226&page=show_problem&problem=2949 [PDF](https://uva.onlinejudge.org/external/118/p11849.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11849/221adf841aad91fca6b99e3715de7ef27f7fe299.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11849/e534529698f8c826b3dddb68691e7f780f3721ca.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11849/fb7257da05e5faa0d902fc44bf79268258c6ecbd.png)