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