class BNode:
    self.key = 0
    self.left = 0
    self.right = 0
class BinarySearchTree:
    self.root = 0
    def init():
        self.root = BNode()
    def add(x):
        pass
    def print():
        pass



if __init__="__main__":
    my_tree = BinarySearchTree()
    my_tree.add(2);
    my_tree.add(2);
    my_tree.add(2);
    my_tree.print();


