UVA13104 Tobby and Prime Sum

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=871&page=show_problem&problem=5002 [PDF](https://uva.onlinejudge.org/external/131/p13104.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13104/7c14afcc0a261f20419fc4c3caf0a19af3e4c3a6.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13104/20630f91b4968c2d8cc70c3dfdb55c6ed2a2e258.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13104/ae5f2b2a797235344d30c6285c1e58c0cbcfbf2d.png)