#include<stdio.h>

    struct node{
    int data;
    struct node*next;
    };
    void printlist(struct node *n)
    {
        while(n !=NULL)
        {

            printf("%d",n->data);
            n=n->next;

        }

    }
    int main()
{ //declare the list
    struct node*head=NULL;
    struct node*first=NULL;
    struct node*second=NULL;

    head=(struct node*)malloc(sizeof(struct node));
     first=(struct node*)malloc(sizeof(struct node));
      second=(struct node*)malloc(sizeof(struct node));
      head->data=1;
      head->next=first;
      first->data=5;
      first->next=second;
      second->data=7;
      second->next=NULL;
      printlist(head);
return 0;

}