#include <iostream>
#include <stdio.h>
#include <stdlib.h>
using namespace std;

struct n {
    int x;
    n * next;
};

typedef n node;

int main ()
{
    int var;
    node * root;
    root = (node *)malloc(sizeof(node));
    node * iter;
    iter = root;
    for(int i=0;i<5;i++){
        iter->x = i;
        iter = iter->next;
    }

    for(int j=0;j<5;j++){
        var = iter->x;
        cout<<var;
        iter = iter->next;
    }
};