#include<stdio.H>
#include<stdlib.h>

struct node
{
    int data;
    struct node*next;
};

node head*=tail*=NULL;

void create(int num)
{
node* newnode=(node*)malloc(sizeof(node));
newnode->data=num;
newnode->next=NULL;
if(head==NULL)
{
    head=newnode;
    tail=newnode;
}
else
{
    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;
    scanf("%d",&size);
    if(size<0)
    {
        printf("Invalid input");
        return 0;
    }
    for(int i=0;i<size;i++)
    {
        scanf("%d",&num);
        create(num);
    }
    display();
    return 0;
}