UVA12542 Prime Substring

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=441&page=show_problem&problem=3987 [PDF](https://uva.onlinejudge.org/external/125/p12542.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12542/5d34c7b4722e949eea194ef561f6735a0c88d839.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12542/8957492c4c3f214a862d1335a97dfaf2a7b08c2c.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12542/fbe262277dfb95720be1e16c24defb723c05d57b.png)