#include <stdio.h>
int main()
{
    int s,count=0;
    scanf("%d",&s);
    int a[s];
    for(int i=0;i<s;i++)
      scanf("%d",&a[i]);
    for(int i=0;i<s;i++){
        count=0;//make count every time 0 to reuse for another number
        for(int j=i+1;j<s;j++){
          if(a[i]==a[j]){
            count++;//get count of each number
            for(int k=j;k<s-1;k++)
              a[k]=a[k+1];//need to remove the duplicate numbers
            s--;
            j--;
          }
        }
        if(count==0)//if unique element is present count will be remain as 0
          printf("%d ",a[i]);
      }
}