Node current = root;
      boolean found = false;
      if(current.getKeyOne().compareTo(x) == 0 || current.getKeyTwo().compareTo(x) == 0) {
    	  	found = true;
    	  }
      if(current.getKeyOne().compareTo(x) > 0) {
    	  	while(current.left != null && found != true) {
    	  		current = current.left;
    	  		if(current.getKeyOne().compareTo(x) == 0 || current.getKeyTwo().compareTo(x) == 0) {
    	    	  		found = true;
    	    	  	}
    	  	}
      }
      if(current.getKeyTwo().compareTo(x) < 0) {
    	  	while(current.right != null && found != true) {
    	  		current = current.right;
    	  		if(current.getKeyOne().compareTo(x) == 0 || current.getKeyTwo().compareTo(x) == 0) {
	    	  		found = true;
	    	  	}
    	  	}
      }
      if(current.getKeyTwo() != null) {
    	  	return String.valueOf(current.getKeyOne()) + " " + String.valueOf(current.getKeyTwo());
      }
      else {
    	  	return String.valueOf(current.getKeyOne());
      }