# include <cstdlib>
# include <iostream>

using namespace std;

int main ( )

//
//  FORMULA2.CPP
//
//  This program is the same as FORMULA.CPP, but now the variable Y
//  does not have a value when we try to use it to compute Z.
//
//  
{
  int x = 12;
  int y;
  int z;

  z = x + 42 * y;

  cout << "Enter the value of y: ";
  cin >> y;

  cout << "x = " << x << "\n";
  cout << "y = " << y << "\n";
  cout << "z = " << z << " = " << x << " + 42 * " << y << "\n";

}