// Program: userational2.cpp
// Add two rational numbers.
#include <iostream>
#include "rational.cpp"

int main () 
{
  // input
  std::cout << "Rational number r:\n";
  rational r;
  std::cin >> r;
                 
  std::cout << "Rational number s:\n";
  rational s;
  std::cin >> s;
 
  // computation and output
  std::cout << "Sum is " << r + s << ".\n";

  return 0;
}