#include <iostream>
using namespace std;
int
main ()
{
int x = 1;
int &y = x;
int *z = &x;
cout << "Initially x " << x << " y " << y << " z " << z << " z val " << *z << endl;
x++;
cout << "After x++ x " << x << " y " << y << " z " << z << " z val " << *z << endl;
y++;
cout << "After y++ x " << x << " y " << y << " z " << z << " z val " << *z << endl;
z++;
cout << "After z++ x " << x << " y " << y << " z " << z << " z val " << *z << endl;
}