#include<stdio.h>
#include<stdlib.h>
typedef struct node
{
    int data;
    struct node*next;
    struct node*prev;
}node;
node *head=NULL,*tail;
void create(int num)
{
    node*newnode=(node*)malloc(sizeof(node));
    newnode->next=data;
    newnode->prev=NULL;
    newnode->next=NULL;
    if(head==NULL)
    {
        head=newnode;
        tail=newnode;
    }
    else
    {
        newnode->prev=tail;
        tail->next=newnode;
        tail=newnode;
    }
}
void display()
{
    node*itr;
    for(itr=head;itr!=NULL;itr=itr->next) 
    {
        printf("%d",&itr->data);
        
    }
    
}
int main()
{
    int itr,num,size;
    scanf("%d",&size);
    if(size<=0)
    {
        printf("Invalid input");
        return 0;
    }
    for(itr=1;itr<=size;itr++)
    {
        scanf("%d",&num);
        create(num);
    }
    display()
        return 0;
    
    
}