UVA719 Glass Beads

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=9&page=show_problem&problem=660 [PDF](https://uva.onlinejudge.org/external/7/p719.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA719/f558907d071bbcc5173a4b04e23918f33b5745e9.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA719/e5380233d3cf54bd58f826ec3d164a388bd3a300.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA719/86a8f57b874730a71f1dcf9d41b09c420d78bf74.png)