/*************************************************************************
 *  Compilation:  javac Flip.java
 *  Execution:    java Flip
 *  
 *  Simulate a fair coin flip and print out "Heads" or "Tails" accordingly.
 *
 *  % java Flip
 *  Heads
 *
 *  % java Flip
 *  Heads
 *
 *  % java Flip
 *  Tails
 *
 *
 *************************************************************************/

public class Flip {

    public static void main(String[] args) { 
      if (Math.random() < 0.5) System.out.println("Heads");
      else                     System.out.println("Tails");
   }

}