#include <iostream> 
using namespace std; 
 
int main() 
{ 
  int j, k; 
  int &i = j;   // independent reference 
 
  j = 10; 
 
  cout << j << " " << i; // outputs 10 10 
 
  k = 121; 
  i = k;      // copies k's value into j, not k's address 
 
  cout << "\n" << j;  // outputs 121 
 
  return 0; 
}
