UVA11468 Substring

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=26&page=show_problem&problem=2463 [PDF](https://uva.onlinejudge.org/external/114/p11468.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11468/84fafd962f73943396e3969808a951d9a6396c25.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11468/b628f18a73ffe475b1f54b91f7966a08930ee3ce.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11468/0ee3e8fdfeca4c5c1938164143fc68971ffa328f.png)