#include <iostream.h>

void compute( double & sum, double & diff,            
              double & prod, double & quot,
              double a, double b)
{
   sum = a + b;
   diff = a - b;
   prod = a * b;
   quot = a / b;
}

int main(int argc, char *argv[])
{
   double a, b, c, d;

   compute(a, b, c, d, 3, 4);

   cout << "Sum        = " << a << endl;
   cout << "Difference = " << b << endl;
   cout << "Product    = " << c << endl;
   cout << "Quotient   = " << d << endl;
}