Node root;

void setup (){
  
  root = new Node( 10, null, null );
  root.addLeftChild( 11 );
  root.left.addLeftChild( 334341 );  
  root.left.addRightChild( 10 );  
  root.left.left.addRightChild( 33434342 );  
  root.left.left.addLeftChild( 3334 );  
  root.left.right.addLeftChild( 6342 );  
  root.left.right.addRightChild( 63 );  
    
  Node temp = root;
  for( int i=0; i<5; i++ ) {
     temp.addRightChild( i );
     temp = temp.right;
  }
 
  println( size( root ) );  
  println( "\n\n" );
}

int size( Node n ) { 
  if( n == null ) {
    return 0;
  } else {
    return size(n.left) + 1 + size(n.right); 
  }
}