﻿ N-B-U-T Online Judge :: [1173] Birdlike Angry Pig
• ### [1173] Birdlike Angry Pig

• 时间限制: 1000 ms　内存限制: 65535 K
• 问题描述
• There's no end to revenge.
Pigs like to eat birds' eggs, so birds decide to revenge.
For this, pigs decide to revenge as well.
Pigs give a task to a birdlike pig. They let he sneak into the birds group so that they can destroy the birds group.

Every bird has a ID number (It may not be unique). To let pigs know, the birdlike pig makes the "AND operation" amount all the birds' ID number and sign himself to the answer.

```For example:
Birds are signed as 5, 3, 4. So the birdlike pig signs himself as (5 & 3 & 4 = 0).```

One day, a group birds pass by pigs' home. So the angry pig want to know whether the birdlike pig is in.
• 输入
• This problem has several cases. The first line of each case is an integer N (2 <= N <= 100 000).
Then follows a line with N integers, indicates the ID of each bird/birdlike pig.
• 输出
• For each case, if you can find the birdlike pig then output the ID of birdlike pig. Or output 'CAUTION: NO BIRDLIKE'.
• 样例输入
• ```5
4 0 3 4 5
```
• 样例输出
• ```0
```
• 提示
• `无`
• 来源
• `XadillaX`
• 操作
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