#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;
    }