//  Sample class with stub constructor and methods

public class Rational
{

   public Rational (int x, int y)
   {
 
   }
       

   public Rational reciprocal ()
   {
      return new Rational (1, 2);
   }

   
   public Rational add (Rational op2)
   {      
      return new Rational (1, 2);
   }

   
   public Rational subtract (Rational op2)
   {
      return new Rational (1, 2);
   }

   
   public Rational multiply (Rational op2)
   {
     return new Rational (1, 2);
   }

   
   public Rational divide (Rational op2)
   {
      return new Rational(1,2);
   }
  
    
 }