// Simple program to demonstrate usage of the IntTree class
//  and the three types of binary tree traversals

public class IntTreeClient {
   public static void main(String[] args) {
      IntTree tree = new IntTree(9);
      tree.printSideways();
      System.out.println();
      
      tree.printPreorder();
      tree.printInorder();
      tree.printPostorder();
   }
}