大理石在哪儿 Where is the Marble?

题意翻译

现有N个大理石,每个大理石上写了一个非负整数。首先把各数从小到大排序,然后回 答Q个问题。每个问题问是否有一个大理石写着某个整数x,如果是,还要回答哪个大理石上 写着x。排序后的大理石从左到右编号为1~N。 Translated by @赵灵儿

题目描述

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=16&page=show_problem&problem=1415 [PDF](https://uva.onlinejudge.org/external/104/p10474.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10474/2bb1c26d80e7830dba0391c0afa3b04c198f8ee0.png)

输入输出格式

输入格式


![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10474/6c2a03977a6e49d286d2fa5cc116d53d9da95e8b.png)

输出格式


![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10474/03b79b1f48ddec6133706f0b92ca55a3ecd02a38.png)

输入输出样例

输入样例 #1

4 1
2
3
5
1
5
5 2
1
3
3
3
1
2
3
0 0

输出样例 #1

CASE# 1:
5 found at 4
CASE# 2:
2 not found
3 found at 3