#include <iostream>

using namespace std;

class Tree
{
 public:
  Tree( const Tree & t )
    : right_( t.get_right() ), left_ (t.get_left() ), data_(t.get_data() ){}

  Tree( int data )
    : right_(nullptr), left_(nullptr), data_(data) {}

  Tree( Tree* right, Tree* left, int data )
    : right_( right), left_(left), data_(data) {}

  Tree* get_right() const { return right_ ;}
  Tree* get_left () const { return left_ ; }
  int   get_data () const { return data_ ; }

  Tree clone() const { return { right_, left_, data_}; }

  void print() const
  {
    cout << "Right:" << right_ -> data_ << endl
     << "Left :" << left_  -> data_ << endl
     << "Data :" << data_           << endl
     <<                                endl;
  }

  void set_right( Tree* right) { right_ = right; }
  void set_left ( Tree* left ) { left_  = left;  }
  void set_data ( int data   ) { data_  = data;  }

private:
  Tree* right_;
  Tree* left_ ;
  int   data_ ;
};



int main()
{

  Tree* tree1 = new Tree(1);
  Tree* tree2 = new Tree(2);
  Tree* tree3 = new Tree( tree1, tree2, 3 );

  Tree* tree4  = new Tree { tree3->clone() };

  cout << "Tree3: " << endl;
  tree3->print();

  cout << "Tree4: " << endl;
  tree4->print();

  tree3->set_right( tree2 );


  cout << "Tree3: " << endl;
  tree3->print();

  cout << "Tree4: " << endl;
  tree4->print();


  return 0;
}