#include <iostream>


int main() {
    int n;
    std::cin >> n;
    int numbers[n];
    for (int i = 0; i < n; ++i){
        std::cin >> numbers[i];
    }
    int flag;
    for (int i = 0; i < n; ++i){
        flag = 0;
        for (int j = 0; j < n; ++j){
            if (numbers[i] == numbers[j] && i != j){
                flag = 1;
            }
        }
        if (!flag)
            std::cout << numbers[i] << " ";
    }

    return 0;

}