namespace ALGA {
	public class AVLTree {
		public Node root;

		public void insert(int number) {
			if (root == null) {
				root = new Node(number);
				return;
			}
			root = root.insert(number);
		}

		public bool isBalanced() {
			if (root == null) return true;
			return root.isBalanced();
		}

		public void prettyprint() {
			return;
		}
	}
}