#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;
  --n;
  cout << "n = " << n << ", rn = " << rn << endl;
  rn *= 2;
  cout << "n = " << n << ", rn = " << rn << endl;
}