#include<stdio.h>
#include<stdlib.h>
typedef struct node
{
    int data;
    struct node*next,*prev;
}Node;

Node *head=NULL,*tail,*first,*second;

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
    {
        tail->next=newnode;
        tail=newnode;
    }
}
void deletion(int val){
    first=head;
    second=second->next;
    if(val==head)
    head=head->next;
    break;
    
}
void display()
{
    int*itr;
    for(itr=head;itr<=NULL;itr=itr->next)
    {
        printf("%d ",itr->data);
    }
    
}
int main()
{
    int n,size,itr;
    scanf("%d",&n);
    if(n<0)
    {
        printf("Invalid input");
        return 0;
    }
    for(i=0;i<n;i++)
    {
        scanf("%d",&n);
        display();
        return 0;
    }
}