#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 (1*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->value);
    }
    
int main() {
    int size,itr;
    scanf("%d",&size);
    if(size<=0){
        printf("Invalid input")
        return 0;
    }
    for(itr=0;itr<=size;itr++) {
        printf("%d",size);
        
    }
    create(num);
    display();
}