#include<stdio.h>
#include<stdlib.h>
typedef struct node
{
    int data;
    struct node*next;
    
}Node;
Node *head=NULL,*tail;
void create(int num)
{
    Node *newNode=(Node*)malloc(1*sizeof(Node));
    newNode->data=num;
    newNode->next=NULL;
    if(head==NULL)
    {
        head=newNode;
        tail=newNode;
    }
    else
    {
        tail->next=newNode;
        tail=newNode;
    }
}
void deletion(int pos)
{
    Node*first=head;
    Node*second=head->next;
    int cnt++;
    while(1)
    {
        if(cnt==pos)
        {
            first->next=second->next;
            break;
        }
        first=first->next;
        second=second->next;
        cnt++
    }
}
void display()
{
    Node*i;
    for(i=head;i!=NULL;i=i->next);
     printf("%d",i->data);
    
}
int main()
{
    int size,i,num,pos;
    scanf("%d",&size);
    if(size<0)
    {
        printf("Invalid input");
        return 0;
    }
    for(i=1;i<=size;i++)
    {
        printf("%d",num);
      create(num);
    }
    display();
}