#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(sizeof(Node));
    newnode->data=num;
    newnode->next=NULL;
    newnode->prev=NULL;
    if(head==NULL){
        head=newnode;
        tail=newnode;
    }
    tail->next=newnode->prev;
    newnode->prev=tail;
    tail=newnode;
}
void display()
{
    int *iter
    for(iter=tail;iter!=NULL;iter=iter->next){
        printf("%d",iter->data)
    }
}
int main(){
    int num,size,itr;
    scanf("%d",&size);
    for(itr=1;itr<=size;itr++){
        scanf("%d",&num);
        create(num);
    }
    display();
    return 0;
}