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Problem
Given two arrays, print the union of their elements (all unique elements), in increasing order.
Input format
Input
input.txt
- The first line contains N and M (1 ≤ N, M ≤ 100). - The second line contains N integers (-1000 ≤ Ai ≤ 1000). - The third line contains M integers (-1000 ≤ Bi ≤ 1000).
Output format
Output
output.txt
- The union, sorted and unique.
Example
input
3 3 1 2 3 2 3 4
output
1 2 3 4
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Sample cases (from the problem)
Sample Case 1
Input
3 3 1 2 3 2 3 4
Expected output
1 2 3 4
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