#include <stdio.h>

int main() {
    int n;
    scanf("%d", &n);

    int arr[n];
    for (int i = 0; i < n; i++) {
        scanf("%d", &arr[i]);
    }

    int result[n], size = 0;

    for (int i = 0; i < n; i++) {
        int found = 0;
        for (int j = 0; j < size; j++) {
            if (arr[i] == result[j]) {
                found = 1; 
                break;
            }
        }
        if (!found) {
            result[size] = arr[i];
            size++;
        }
    for (int i = 0; i < size; i++) {
        printf("%d ", result[i]);
    }

    return 0;
}