#include<stdio.h>
#include<stdlib.h>
typedef struct list
{
    int data;
    list *next;
}List;
void create_list(list *&head,int len)
{
    list *p=head;
    for(int i=0;i<len;i++)
    {
        list *pnew=(list*)malloc(sizeof(list));
        scanf("%d",&pnew->data);
        p->next=pnew;
        p=p->next;
    }
    p->next=NULL;
}
void print_list(list *head)
{
    while(head->next!=NULL)
    {
        head=head->next;
        printf("%d ",head->data);
    }
}
void delete_list(list *head,list *tail,list *newList)
{
    list *o,*p,*q,*r=head,*t=newList;
    int l=0;
    for(p=head->next;p!=NULL;)
    {
        l=0;
        for(q=p->next;q!=NULL;q=q->next)
        {
            if(p->data==q->data)
            {
                l=1;
                o=p;
                r->next=p->next;
                p=p->next;
                free(o);
                break;
            }
        }
        if(!l)
        {
            r=p;
            p=p->next;
        }
        /*if(!l)
        {
            t->next=p;
            t=t->next;
        }*/
    }
    t->next=NULL;
}
int main()
{
    list l;
    int len;
    scanf("%d",&len);
    list *newList=(list *)malloc(sizeof(list)),*tail=(list *)malloc(sizeof(list)),*head=(list *)malloc(sizeof(list));
    create_list(head,len);
    tail=head;
    delete_list(head,tail,newList);
    //print_list(newList);
    print_list(head);
    return 0;
}