UVA123 Searching Quickly

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=3&page=show_problem&problem=59 [PDF](https://uva.onlinejudge.org/external/1/p123.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA123/bc9c3fd6b71fbadb7493cdf2e142d1dbee3acca9.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA123/fd5fdaea2bef9db111538efc0102b4b62ce9a746.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA123/83ef5b49378d2635aa5c2170348c79127dff0708.png)