class treenode{
	private:
		int value;

	public:
		int size;
		treenode* parent; 
		treenode* lchild; 
		treenode* rchild;
		treenode();
		int setvalue(int);
		int getvalue();
		void TraverseInorder();
};
int treenode::setvalue(int x){
	value=x;
}
int treenode::getvalue(){
	return value;
}
treenode::treenode(){
	value=100; //default value
	parent=NULL;
	lchild=NULL;
	rchild=NULL;
	size=1;
}

void treenode::TraverseInorder (){
	//lchild-parent-rchild
//	if (node==NULL) return;
	if (lchild) lchild->TraverseInorder ();
	cout<<"  "<< value;
	if (rchild) rchild->TraverseInorder ();
}