#include <iostream.h>
#include <stdio.h>

struct node {
             node *left,*right;
	     int value;
	    };
node *root;

/************************************/
void print_tree (node *ptr)
{
}

/************************************/
int main()
{
   node *root;

   root = new node;
   root->value = 20;
   root->left  = new node;
   root->right = new node;

   root->left->value = 10;
   root->left->left  = NULL;
   root->left->right = NULL;

   root->right->value = 40;
   root->right->left  = new node;
   root->right->right = NULL;

   root->right->left->value = 30;
   root->right->left->left  = NULL;
   root->right->left->right = NULL;

   print_tree(root);

}