UVA789 Indexing

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=9&page=show_problem&problem=730 [PDF](https://uva.onlinejudge.org/external/7/p789.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA789/0a7208e743e6869a88f773a76e2abf16f86f6433.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA789/82700b555cc903c26a8fa2ecb7a776777790faa0.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA789/c6c56119a52a89b5dd0f5b81aa22e66f958f05be.png)