UVA10686 SQF Problems

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=18&page=show_problem&problem=1627 [PDF](https://uva.onlinejudge.org/external/106/p10686.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10686/21c0d5272650bcb3088d9fabddd3dadf72ef1cb7.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10686/8228e6e1605590f310f21e88e6f07e4592325f65.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10686/14638a5cd848ea06704dd0a5e9d3e79238b048ff.png)