// editor2

#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->data=num;
    newNode->next=NULL;
    newNode->prev=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 size,num,itr;
    scanf("%d",&size);
    if(size<0){
        printf("Invalid input");
        return 0;
    }
    for(itr=0;itr<size;itr++){
        scanf("%d",&num);
        create(num);
    }
    display();