UVA10948 The primary problem

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=21&page=show_problem&problem=1889 [PDF](https://uva.onlinejudge.org/external/109/p10948.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10948/e8db1ede82953ce1670162c4cb5dde5e02f35076.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10948/2b712e379782764e7b714ebada6c5d4d4ea8dfab.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10948/8ef2ba1bb7ff9690621ef3bff83005d37e831f21.png)