#include <iostream>
#include <stdlib.h>
using namespace std;

int main()
{
   int size;
   cin >> size;
   int * array = (int *) malloc(size * sizeof(int));
   for (int i = 0; i < size; i++) {
      cin >> array[i];
   }
   
   int * pom = (int *) malloc(size * sizeof(int));
   int index = 0;
   for (int i = 0; i < size; i++) {
       int value = array[i];
       
       int x = 0;
       for (int j = i + 1; j < size; j++) {
           if (array[j] == value) {
              x++;
              break;
           }
       }
       if (x >= 1) {
           int boo = 0;
           for (int j = 0; j <= index; j++) {
               if (pom[j] == value) {
                   boo = 1;
                   break;
               }
           }
           if (boo == 0) {
              pom[++index] = value;
              cout << value;
              cout << " ";
           }
       }
   }
   free(array);
   free(pom);
   return 0;
}