Problem
Given an array, remove all duplicate elements and print the result in the order of first appearance.
Input format
Input
input.txt
- An integer N (1 ≤ N ≤ 100) - N integers
Output format
Output
output.txt
- The array with duplicates removed.
Example
input
7 2 3 2 4 3 5 4
output
2 3 4 5
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Sample cases (from the problem)
Sample Case 1
Input
7 2 3 2 4 3 5 4
Expected output
2 3 4 5
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