Unique Registration Numbers

You are given a list of registration numbers. Your task is to determine whether all the registration numbers in the list are unique.

Input: The first line of input contains an integer \(n\) representing the number of registration numbers. The second line contains \(n\) space-separated integers, each representing a registration number.

Output: Print True if all registration numbers are unique; otherwise, print False.

For example, if the input is:

5
1 2 3 4 5

the output should be:

True

inputFormat

The input is read from stdin and consists of two lines:

• The first line contains an integer \(n\), the number of registration numbers.
• The second line contains \(n\) space-separated integers.

outputFormat

Output a single line to stdout containing either True if all numbers are unique, or False if there is any duplicate.

## sample

5
1 2 3 4 5

True