#include <iostream>
#include <algorithm>
using namespace std;
int main() {
const int MAX_N = 1e5;
int arr[MAX_N];
int N;
cin >> N;
for(int i = 0; i < N; i++){
cin >> arr[i];
}
sort(arr, arr + N);
for(int i = 0; i < N - 1; i++){
if(arr[i] == arr[i - 1]) continue;
cout << arr[i] << ' ';
}
cout << arr[N - 1] << '\n';
return 0;
}
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