text: #include <iostream>
  #include <cstdlib>
  
  using std::cin;
  using std::cout;
  using std::endl;
  
  int main (int argc, char *argv [])
  {
  	int x = 0;
  	int &y = x;
  
  	cout << x << endl;
  	y = 5;
  	cout << x << endl;
  
  //	system ("read -p \"press any key to continue...\"");
  
  	return 0;
  }
  