private static void printStep(Step step) {
   System.out.println(String.format("from: %s to: %s", step.getFromPeg(), step.getToPeg()));
 }
 public static int calculateHelpPeg(Step step) {
   return 6 - step.getFromPeg() - step.getToPeg();
 }
 public static Step getHelpStep(Step step) {
   return new Step(step.getFromPeg(), calculateHelpPeg(step));
 }