#include<stdio.h>
#include<stdlib.h>
struct node
{
    int data;
    struct node* next;
};
struct node* createnode(int value)
{
    struct node* newnode = (struct node*)malloc(sizeof(struct node));
    newnode->data = value;
    newnode->next = NULL;
    return newnode;
}
int main()
{
    int n;
    if (scanf("%d",&n) !=1 || n<=0)
    {
        printf("invalid input");
        return 0;
    }
    struct node*newnode=createnode(value);
    if (head == NULL)
    {
        head = newnode;
        temp = newnode;
    }
    else{
        temp->next = newnode;
        temp = newnode;
    }
}
    temp = head;
    while(temp! NULL) 
    {
        printf("%d", temp->next);
        temp = temp=>next;
    }
    return 0;
    }