#include <iostream>
using namespace std;
int main()
{
  int n=44;
  int& rn=n; // r is a synonym for n
  cout << " &n = " << &n << ", &rn = " << &rn << endl;
  int& rn2=n;
  // r is another synonym for n
  int& rn3=rn; // r is another synonym for n
  cout << "&rn2 = " << &rn2 << ", &rn3 = " << &rn3 << endl;
}