#include<bits/stdc++.h>
using namespace std;
int n, a[20001], b[20001];
int main() {
	cin >> n;
	for (int i = 1; i <= n; i++) {
		cin >> a[i];
		b[i] = a[i];
	}
	for (int i = 1; i <= n; i++) {
		for (int j = 1; j <= i; j++) {
			if (a[i] == b[j] && i != j) {
				a[i] = 1;
			}
		}
	}
	for (int i = 1; i <= n; i++) {
		if (a[i] != 1) {
			cout << a[i] << " ";
		}
	}
	return 0;
}