//*******************************************************************
//   Hanoi1.java
//*******************************************************************

public class Hanoi1
{
   public static String towerOfHanoi(int ndisks, int fromPeg, int toPeg)
   {
      int helpPeg;
      String Sol1, Sol2, MyStep;

      if (ndisks == 1)
	 return "Move " + fromPeg + " ---> " + toPeg + "\n";
      else
       {
         helpPeg = 6 - fromPeg - toPeg;

         Sol1 = towerOfHanoi(ndisks-1, fromPeg, helpPeg);
	 MyStep = "Move " + fromPeg + " ---> " + toPeg + "\n";
	 Sol2 = towerOfHanoi(ndisks-1, helpPeg, toPeg);

	 return Sol1 + MyStep + Sol2;
       }
   }

   public static void main (String[] args)
   {
      int ndisks = 4;  // Try also with ndisks = 3 to gain insight
      int fromPeg = 1;
      int toPeg = 3;
      String StepsToSolution;

      StepsToSolution = towerOfHanoi(ndisks, fromPeg, toPeg);

      System.out.println(StepsToSolution);
   }
}