UVA12828 Kick the ball!

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=861&page=show_problem&problem=4693 [PDF](https://uva.onlinejudge.org/external/128/p12828.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12828/aa5d71ec58fd29e0ee7d43e7f1e6d8f900b598e7.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12828/259f01d117dc5b778f844caa7fcc6a7d9445b171.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12828/678078af2a7c2ac0aa659b5edd1a5dc798dbbc29.png)