

from typing import Literal

__A	:   List[Any]	=					'ABCDEFGHIJKLMNOPQRSTUVWXYZ'




def        __UpperCamelCase     (      _A					:							Union[str, Any]      ,  _A					:							int      ,  _A					:							Optional[Any]		)				->str:



							"""simple docstring"""
							lowerCamelCase_								=LETTERS if mode == """decrypt""" else key
							lowerCamelCase_								=key if mode == """decrypt""" else LETTERS
							lowerCamelCase_								=""""""
							# loop through each symbol in the message
							for symbol in message:
														if symbol.upper() in chars_a:
																					# encrypt/decrypt the symbol
																					lowerCamelCase_								=chars_a.find(symbol.upper()		)
																					if symbol.isupper():
																												translated += chars_b[sym_index].upper()
																					else:
																												translated += chars_b[sym_index].lower()
														else:
																					# symbol is not in LETTERS, just add it
																					translated += symbol
							return translated




def        __UpperCamelCase     (      _A					:							Union[str, Any]      ,  _A					:							List[str]		)				->str:



							"""simple docstring"""
							return translate_message(_A      ,  _A      ,  """encrypt"""		)




def        __UpperCamelCase     (      _A					:							Optional[int]      ,  _A					:							List[Any]		)				->str:



							"""simple docstring"""
							return translate_message(_A      ,  _A      ,  """decrypt"""		)




def        __UpperCamelCase     (      )				->None:



							"""simple docstring"""
							lowerCamelCase_								="""Hello World"""
							lowerCamelCase_								="""QWERTYUIOPASDFGHJKLZXCVBNM"""
							lowerCamelCase_								="""decrypt"""  # set to 'encrypt' or 'decrypt'

							if mode == "encrypt":
														lowerCamelCase_								=encrypt_message(_A      ,  _A		)
							elif mode == "decrypt":
														lowerCamelCase_								=decrypt_message(_A      ,  _A		)
							print(f'Using the key {key}, the {mode}ed message is: {translated}'		)


if __name__ == "__main__":
	import doctest

	doctest.testmod()
	main()



'''simple docstring'''

from .balanced_parentheses import balanced_parentheses
from .stack import Stack

def      __magic_name__							(			A				)      ->		int:
	return {"+": 1, "-": 1, "*": 2, "/": 2, "^": 3}.get(A       , -1				)

def      __magic_name__							(			A				)      ->		str:
	if not balanced_parentheses(A				):
		raise ValueError('Mismatched parentheses'				)
	snake_case							=					Stack()
	snake_case							=					[]
	for char in expression_str:
		if char.isalpha() or char.isdigit():
			postfix.append(A				)
		elif char == "(":
			stack.push(A				)
		elif char == ")":
			while not stack.is_empty() and stack.peek() != "(":
				postfix.append(stack.pop()				)
			stack.pop()
		else:
			while not stack.is_empty() and precedence(A				) <= precedence(stack.peek()				):
				postfix.append(stack.pop()				)
			stack.push(A				)
	while not stack.is_empty():
		postfix.append(stack.pop()				)
	return " ".join(A				)


if __name__ == "__main__":
						from doctest import testmod

						testmod()
						lowerCAmelCase_     =      "a+b*(c^d-e)^(f+g*h)-i"

						print("Infix to Postfix Notation demonstration:\n")
						print("Infix notation: " + expression)
						print("Postfix notation: " + infix_to_postfix(expression))





