#include <bits/stdc++.h>
using namespace std;
int main()
{
int n;
cin >> n;
vector<int> arr(n);
set<int> sorted;
for (int i = 0; i < arr.size(); i++)
{
cin >> arr[i];
sorted.insert(arr[i]);
}
for (int i : sorted)
{
cout << i << " ";
}
return 0;
}
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