

'''simple docstring'''

from typing import Literal

lowerCAmelCase_     =      "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

def      __magic_name__							(			A       , A       , A				)      ->		str:
	snake_case							=					LETTERS if mode == 'decrypt' else key
	snake_case							=					key if mode == 'decrypt' else LETTERS
	snake_case							=					''
	# loop through each symbol in the message
	for symbol in message:
		if symbol.upper() in chars_a:
			# encrypt/decrypt the symbol
			snake_case							=					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      __magic_name__							(			A       , A				)      ->		str:
	return translate_message(A       , A       , 'encrypt'				)

def      __magic_name__							(			A       , A				)      ->		str:
	return translate_message(A       , A       , 'decrypt'				)

def      __magic_name__							(			)      ->		None:
	snake_case							=					'Hello World'
	snake_case							=					'QWERTYUIOPASDFGHJKLZXCVBNM'
	snake_case							=					'decrypt'  # set to 'encrypt' or 'decrypt'

	if mode == "encrypt":
		snake_case							=					encrypt_message(A       , A				)
	elif mode == "decrypt":
		snake_case							=					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 __future__ import annotations







class lowerCamelCase   :

				def __init__(       self,						lowercase_ )    ->							None:
					snake_case							=					value
					snake_case							=					None
					snake_case							=					None







class lowerCamelCase   :
				snake_case_							     = 42

				def __init__(       self )    ->							None:
					snake_case							=					0

				def 					_lowerCamelCase    (       self,						lowercase_,						lowercase_ )    ->							None:
					if node is None:
						return

					if path_sum == self.target:
						self.paths += 1

					if node.left:
						self.depth_first_search(node.left,						path_sum + node.left.value )
					if node.right:
						self.depth_first_search(node.right,						path_sum + node.right.value )






				def 					_lowerCamelCase    (       self,						lowercase_,						lowercase_ = None )    ->							int:
					if node is None:
						return 0
					if target is not None:
						snake_case							=					target

					self.depth_first_search(lowercase_,						node.value )
					self.path_sum(node.left )
					self.path_sum(node.right )

					return self.paths


if __name__ == "__main__":
						import doctest

						doctest.testmod()





