

import random
import sys

lowerCAmelCase       :				Dict         =					'ABCDEFGHIJKLMNOPQRSTUVWXYZ'

def 				A_					(							):

      """simple docstring"""



      SCREAMING_SNAKE_CASE_			:					int          =       input('Enter message: '					)
      SCREAMING_SNAKE_CASE_			:					Union[str, Any]          =       'LFWOAYUISVKMNXPBDCRJTQEGHZ'
      SCREAMING_SNAKE_CASE_			:					int          =       input('Encrypt/Decrypt [e/d]: '					)

      check_valid_key(a					)

      if resp.lower().startswith('e'					):
            SCREAMING_SNAKE_CASE_			:					Union[str, Any]          =       'encrypt'
            SCREAMING_SNAKE_CASE_			:					int          =       encrypt_message(a   ,				a					)
      elif resp.lower().startswith('d'					):
            SCREAMING_SNAKE_CASE_			:					List[Any]          =       'decrypt'
            SCREAMING_SNAKE_CASE_			:					List[Any]          =       decrypt_message(a   ,				a					)

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

def 				A_					(							a					):

      """simple docstring"""



      SCREAMING_SNAKE_CASE_			:					Any          =       list(a					)
      SCREAMING_SNAKE_CASE_			:					Tuple          =       list(a					)
      key_list.sort()
      letters_list.sort()

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

def 				A_					(							a   ,				a					):

      """simple docstring"""



      return translate_message(a   ,				a   ,				'encrypt'					)

def 				A_					(							a   ,				a					):

      """simple docstring"""



      return translate_message(a   ,				a   ,				'decrypt'					)

def 				A_					(							a   ,				a   ,				a					):

      """simple docstring"""



      SCREAMING_SNAKE_CASE_			:					Tuple          =       ''
      SCREAMING_SNAKE_CASE_			:					Union[str, Any]          =       LETTERS
      SCREAMING_SNAKE_CASE_			:					str          =       key

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

      for symbol in message:
            if symbol.upper() in chars_a:
                  SCREAMING_SNAKE_CASE_			:					Any          =       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 				A_					(							):

      """simple docstring"""



      SCREAMING_SNAKE_CASE_			:					Any          =       list(a					)
      random.shuffle(a					)
      return "".join(a					)


if __name__ == "__main__":
    main()









from math import factorial

def 				A_					(							a   ,				a					):

      """simple docstring"""



      return factorial(a					) / (factorial(a					) * factorial(n - r					))

def 				A_					(							):

      """simple docstring"""



      SCREAMING_SNAKE_CASE_			:					Union[str, Any]          =       0

      for i in range(1   ,				1_0_1					):
            for j in range(1   ,				i + 1					):
                  if combinations(a   ,				a					) > 1e6:
                        total += 1
      return total


if __name__ == "__main__":
    print(solution())






