UVA473 Raucous Rockers

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=6&page=show_problem&problem=414 [PDF](https://uva.onlinejudge.org/external/4/p473.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA473/734ed5ccb355cf1751a666311131e182b0a69b21.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA473/5d8ef903cca57daa544acef6091bcbb9dc0b4359.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA473/43e941724d52575784f7a0218d6401add963e698.png)