





from __future__ import annotations

import queue

class       __A     :


    def __init__(		self   , UpperCAmelCase_							):
        lowerCamelCase	 =data
        lowerCamelCase	 =None
        lowerCamelCase	 =None





def      _lowercase					(						)						->  TreeNode:
    print("""\n********Press N to stop entering at any point of time********\n"""				)
    lowerCamelCase	 =input("""Enter the value of the root node: """				).strip().lower()
    lowerCamelCase	 =queue.Queue()
    lowerCamelCase	 =TreeNode(int(_UpperCAmelCase				)				)
    q.put(_UpperCAmelCase				)
    while not q.empty():
        lowerCamelCase	 =q.get()
        lowerCamelCase	 =F"""Enter the left node of {node_found.data}: """
        lowerCamelCase	 =input(_UpperCAmelCase				).strip().lower() or """n"""
        if check == "n":
            return tree_node
        lowerCamelCase	 =TreeNode(int(_UpperCAmelCase				)				)
        lowerCamelCase	 =left_node
        q.put(_UpperCAmelCase				)
        lowerCamelCase	 =F"""Enter the right node of {node_found.data}: """
        lowerCamelCase	 =input(_UpperCAmelCase				).strip().lower() or """n"""
        if check == "n":
            return tree_node
        lowerCamelCase	 =TreeNode(int(_UpperCAmelCase				)				)
        lowerCamelCase	 =right_node
        q.put(_UpperCAmelCase				)
    raise





def      _lowercase					(						_UpperCAmelCase				)						->  None:
    if not isinstance(_UpperCAmelCase			,      _UpperCAmelCase				) or not node:
        return
    print(node.data			,      end=""","""				)
    pre_order(node.left				)
    pre_order(node.right				)





def      _lowercase					(						_UpperCAmelCase				)						->  None:
    if not isinstance(_UpperCAmelCase			,      _UpperCAmelCase				) or not node:
        return
    in_order(node.left				)
    print(node.data			,      end=""","""				)
    in_order(node.right				)





def      _lowercase					(						_UpperCAmelCase				)						->  None:
    if not isinstance(_UpperCAmelCase			,      _UpperCAmelCase				) or not node:
        return
    post_order(node.left				)
    post_order(node.right				)
    print(node.data			,      end=""","""				)





def      _lowercase					(						_UpperCAmelCase				)						->  None:
    if not isinstance(_UpperCAmelCase			,      _UpperCAmelCase				) or not node:
        return
    lowerCamelCase	 =queue.Queue()
    q.put(_UpperCAmelCase				)
    while not q.empty():
        lowerCamelCase	 =q.get()
        print(node_dequeued.data			,      end=""","""				)
        if node_dequeued.left:
            q.put(node_dequeued.left				)
        if node_dequeued.right:
            q.put(node_dequeued.right				)





def      _lowercase					(						_UpperCAmelCase				)						->  None:
    if not isinstance(_UpperCAmelCase			,      _UpperCAmelCase				) or not node:
        return
    lowerCamelCase	 =queue.Queue()
    q.put(_UpperCAmelCase				)
    while not q.empty():
        lowerCamelCase	 =[]
        while not q.empty():
            lowerCamelCase	 =q.get()
            print(node_dequeued.data			,      end=""","""				)
            if node_dequeued.left:
                list_.append(node_dequeued.left				)
            if node_dequeued.right:
                list_.append(node_dequeued.right				)
        print()
        for node in list_:
            q.put(_UpperCAmelCase				)





def      _lowercase					(						_UpperCAmelCase				)						->  None:
    if not isinstance(_UpperCAmelCase			,      _UpperCAmelCase				) or not node:
        return
    lowerCamelCase	 =[]
    lowerCamelCase	 =node
    while n or stack:
        while n:  # start from root node, find its left child
            print(n.data			,      end=""","""				)
            stack.append(_UpperCAmelCase				)
            lowerCamelCase	 =n.left
        # end of while means current node doesn't have left child
        lowerCamelCase	 =stack.pop()
        # start to traverse its right child
        lowerCamelCase	 =n.right





def      _lowercase					(						_UpperCAmelCase				)						->  None:
    if not isinstance(_UpperCAmelCase			,      _UpperCAmelCase				) or not node:
        return
    lowerCamelCase	 =[]
    lowerCamelCase	 =node
    while n or stack:
        while n:
            stack.append(_UpperCAmelCase				)
            lowerCamelCase	 =n.left
        lowerCamelCase	 =stack.pop()
        print(n.data			,      end=""","""				)
        lowerCamelCase	 =n.right





def      _lowercase					(						_UpperCAmelCase				)						->  None:
    if not isinstance(_UpperCAmelCase			,      _UpperCAmelCase				) or not node:
        return
    lowerCamelCase ,  lowerCamelCase	 =[], []
    lowerCamelCase	 =node
    stacka.append(_UpperCAmelCase				)
    while stacka:  # to find the reversed order of post order, store it in stack2
        lowerCamelCase	 =stacka.pop()
        if n.left:
            stacka.append(n.left				)
        if n.right:
            stacka.append(n.right				)
        stacka.append(_UpperCAmelCase				)
    while stacka:  # pop up from stack2 will be the post order
        print(stacka.pop().data			,      end=""","""				)





def      _lowercase					(						_UpperCAmelCase = ""			,      _UpperCAmelCase=50			,      _UpperCAmelCase="*"				)						->  str:
    if not s:
        return "\n" + width * char
    lowerCamelCase ,  lowerCamelCase	 =divmod(width - len(_UpperCAmelCase				) - 2			,      2				)
    return F"""{left * char} {s} {(left + extra) * char}"""


if __name__ == "__main__":
       import doctest

       doctest.testmod()
       print(prompt('''Binary Tree Traversals'''))

       UpperCAmelCase__						:			TreeNode									=build_tree()
       print(prompt('''Pre Order Traversal'''))
       pre_order(node)
       print(prompt() + '''\n''')

       print(prompt('''In Order Traversal'''))
       in_order(node)
       print(prompt() + '''\n''')

       print(prompt('''Post Order Traversal'''))
       post_order(node)
       print(prompt() + '''\n''')

       print(prompt('''Level Order Traversal'''))
       level_order(node)
       print(prompt() + '''\n''')

       print(prompt('''Actual Level Order Traversal'''))
       level_order_actual(node)
       print('''*''' * 50 + '''\n''')

       print(prompt('''Pre Order Traversal - Iteration Version'''))
       pre_order_iter(node)
       print(prompt() + '''\n''')

       print(prompt('''In Order Traversal - Iteration Version'''))
       in_order_iter(node)
       print(prompt() + '''\n''')

       print(prompt('''Post Order Traversal - Iteration Version'''))
       post_order_iter(node)
       print(prompt())












from abc import ABC, abstractmethod
from argparse import ArgumentParser

class       __A     (						a    ):


				@staticmethod
				@abstractmethod
				def _snake_case       (		UpperCAmelCase_							):
								raise NotImplementedError()


				@abstractmethod
				def _snake_case       (		self							):
								raise NotImplementedError()





