#include <iostream>
#include <algorithm>

using namespace std;

int main() {
	int n;
	cin >> n;
    double*a = new double[n];
    for(int i = 0; i < n; ++i) cin >> a[i];
    sort(a,a+n);
    n = unique(a,a+n) - a;
    for(int i = 0; i < n; ++i) cout << a[i] << " ";

}