UVA557 汉堡 Burger

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=7&page=show_problem&problem=498 [PDF](https://uva.onlinejudge.org/external/5/p557.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA557/f4f546acd7ee01f87df66d59d5d9c0f6a6840010.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA557/314ae821a0fd282b1fe0b43cf9ab968158632a2a.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA557/fb6e6576d30568112207fef669615fd888e7ec64.png)