UVA11985 Prime Independence

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=229&page=show_problem&problem=3136 [PDF](https://uva.onlinejudge.org/external/119/p11985.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11985/83525e04b860071415f15f7016de2ee655ae44ad.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11985/02923e8cfe466dc87e22e924b68bb19dde4fbd99.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11985/55e0eab2c1d15c3e34f7c2dd06fd3ebd88778113.png)