
def 						A_			(				snake_case				: str			,   snake_case				: int = 13			)   ->     str:



						'''simple docstring'''

						__UpperCamelCase  	=      ''''''
						for c in s:
												if "A" <= c <= "Z":
																		out += chr(ord('''A'''			) + (ord(snake_case			) - ord('''A'''			) + n) % 26			)
												elif "a" <= c <= "z":
																		out += chr(ord('''a'''			) + (ord(snake_case			) - ord('''a'''			) + n) % 26			)
												else:
																		out += c
						return out




def 						A_			(				)   ->     None:



						'''simple docstring'''

						__UpperCamelCase  	=      input('''Enter message: '''			)

						__UpperCamelCase  	=      dencrypt(snake_case			,   13			)
						print('''Encryption:'''			,   snake_case			)

						__UpperCamelCase  	=      dencrypt(snake_case			,   13			)
						print('''Decryption: '''			,   snake_case			)


if __name__ == "__main__":
				import doctest

				doctest.testmod()
				main()





"""simple docstring"""


import random
import sys

__UpperCamelCase										=     '''ABCDEFGHIJKLMNOPQRSTUVWXYZ'''







def    UpperCAmelCase       (						)							-> None:
     snake_case_   			=   input('Enter message: '   )
     snake_case_   			=   'LFWOAYUISVKMNXPBDCRJTQEGHZ'
     snake_case_   			=   input('Encrypt/Decrypt [e/d]: '   )

     check_valid_key(UpperCAmelCase   )

     if resp.lower().startswith('e'   ):
          snake_case_   			=   'encrypt'
          snake_case_   			=   encrypt_message(UpperCAmelCase		,   UpperCAmelCase   )
     elif resp.lower().startswith('d'   ):
          snake_case_   			=   'decrypt'
          snake_case_   			=   decrypt_message(UpperCAmelCase		,   UpperCAmelCase   )

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







def    UpperCAmelCase       (						UpperCAmelCase   )							-> None:
     snake_case_   			=   list(UpperCAmelCase   )
     snake_case_   			=   list(UpperCAmelCase   )
     key_list.sort()
     letters_list.sort()

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







def    UpperCAmelCase       (						UpperCAmelCase		,   UpperCAmelCase   )							-> str:
     return translate_message(UpperCAmelCase		,   UpperCAmelCase		,   'encrypt'   )







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







def    UpperCAmelCase       (						UpperCAmelCase		,   UpperCAmelCase		,   UpperCAmelCase   )							-> str:
     snake_case_   			=   ''
     snake_case_   			=   LETTERS
     snake_case_   			=   key

     if mode == "decrypt":
          snake_case_			,      snake_case_   			=   chars_b, chars_a

     for symbol in message:
          if symbol.upper() in chars_a:
               snake_case_   			=   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    UpperCAmelCase       (						)							-> str:
     snake_case_   			=   list(UpperCAmelCase   )
     random.shuffle(UpperCAmelCase   )
     return "".join(UpperCAmelCase   )


if __name__ == "__main__":
    main()

