#include<iostream>
using namespace std;
struct node {
    int info;
    struct node *next;
} *p,*q,*temp,*head;

int main() 
{
    p=new(struct node);
    p->info=100;
    p->next=NULL;
    cout<<p<<endl;
    cout<<p->info<<endl;
    
    head=new(struct node);
    head->info=200;
    head->next=p;
    
    cout<<head->next;

}