

"""simple docstring"""





from __future__ import annotations

from typing import Any







class        SCREAMING_SNAKE_CASE      :






					"""simple docstring"""



					def __init__( self    :       List[str]     ,lowercase_    :       Any     ,lowercase_    :       Any	):  # noqa: A002
						lowerCAmelCase__			:		int						       =			item
						lowerCAmelCase__			:		Optional[int]						       =			next







class        SCREAMING_SNAKE_CASE      :






					"""simple docstring"""



					def __init__( self    :       List[Any]	):
						lowerCAmelCase__			:		Node | None						       =			None
						lowerCAmelCase__			:		Union[str, Any]						       =			0







					def  __lowerCAmelCase				( self    :       int     ,lowercase_    :       Any	):
						lowerCAmelCase__			:		Dict						       =			Node(lowercase_     ,self.head	)
						self.size += 1







					def  __lowerCAmelCase				( self    :       int	):
						# Switched 'self.is_empty()' to 'self.head is None'
						# because mypy was considering the possibility that 'self.head'
						# can be None in below else part and giving error
						if self.head is None:
							return None
						else:
							lowerCAmelCase__			:		Optional[int]						       =			self.head.item
							lowerCAmelCase__			:		Dict						       =			self.head.next
							self.size -= 1
							return item







					def  __lowerCAmelCase				( self    :       Optional[int]	):
						return self.head is None







					def __str__( self    :       List[str]	):
						if self.is_empty():
							return ""
						else:
							lowerCAmelCase__			:		Tuple						       =			self.head
							lowerCAmelCase__			:		List[Any]						       =			''''''
							lowerCAmelCase__			:		list[str]						       =			[]
							while iterate:
								item_list.append(str(iterate.item	)	)
								lowerCAmelCase__			:		Any						       =			iterate.next

							lowerCAmelCase__			:		List[Any]						       =			''' --> '''.join(lowercase_	)

							return item_str







					def __len__( self    :       Optional[int]	):
						return self.size


"""simple docstring"""





import random
import sys

__UpperCamelCase						:   Tuple							   =	'''ABCDEFGHIJKLMNOPQRSTUVWXYZ'''

def 						__SCREAMING_SNAKE_CASE						(   ):
	lowerCAmelCase__			:		List[str]						       =			input('''Enter message: '''				)
	lowerCAmelCase__			:		Optional[int]						       =			'''LFWOAYUISVKMNXPBDCRJTQEGHZ'''
	lowerCAmelCase__			:		List[Any]						       =			input('''Encrypt/Decrypt [e/d]: '''				)

	check_valid_key(A_				)

	if resp.lower().startswith('''e'''				):
		lowerCAmelCase__			:		Tuple						       =			'''encrypt'''
		lowerCAmelCase__			:		Union[str, Any]						       =			encrypt_message(A_		,  A_				)
	elif resp.lower().startswith('''d'''				):
		lowerCAmelCase__			:		Dict						       =			'''decrypt'''
		lowerCAmelCase__			:		str						       =			decrypt_message(A_		,  A_				)

	print(f'\n{mode.title()}ion: \n{translated}'				)

def 						__SCREAMING_SNAKE_CASE						(   A_				):
	lowerCAmelCase__			:		str						       =			list(A_				)
	lowerCAmelCase__			:		int						       =			list(A_				)
	key_list.sort()
	letters_list.sort()

	if key_list != letters_list:
		sys.exit('''Error in the key or symbol set.'''				)

def 						__SCREAMING_SNAKE_CASE						(   A_		,  A_				):
	return translate_message(A_		,  A_		,  '''encrypt'''				)

def 						__SCREAMING_SNAKE_CASE						(   A_		,  A_				):
	return translate_message(A_		,  A_		,  '''decrypt'''				)

def 						__SCREAMING_SNAKE_CASE						(   A_		,  A_		,  A_				):
	lowerCAmelCase__			:		str						       =			''''''
	lowerCAmelCase__			:		List[str]						       =			LETTERS
	lowerCAmelCase__			:		Optional[int]						       =			key

	if mode == "decrypt":
		lowerCAmelCase__       ,lowerCAmelCase__			:		int						       =			chars_b, chars_a

	for symbol in message:
		if symbol.upper() in chars_a:
			lowerCAmelCase__			:		int						       =			chars_a.find(symbol.upper()				)
			if symbol.isupper():
				translated += chars_b[sym_index].upper()
			else:
				translated += chars_b[sym_index].lower()
		else:
			translated += symbol

	return translated

def 						__SCREAMING_SNAKE_CASE						(   ):
	lowerCAmelCase__			:		Optional[int]						       =			list(A_				)
	random.shuffle(A_				)
	return "".join(A_				)


if __name__ == "__main__":
							main()




