import random
import sys

UpperCAmelCase							=							'ABCDEFGHIJKLMNOPQRSTUVWXYZ'






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

      check_valid_key(lowerCAmelCase_     )

      if resp.lower().startswith("e"     ):
            snake_case_     :			str       =       "encrypt"
            snake_case_     :			Any       =       encrypt_message(lowerCAmelCase_ ,	lowerCAmelCase_     )
      elif resp.lower().startswith("d"     ):
            snake_case_     :			Union[str, Any]       =       "decrypt"
            snake_case_     :			Optional[Any]       =       decrypt_message(lowerCAmelCase_ ,	lowerCAmelCase_     )

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






def 					SCREAMING_SNAKE_CASE_			(		lowerCAmelCase_: int     ):
      snake_case_     :			Tuple       =       list(lowerCAmelCase_     )
      snake_case_     :			Any       =       list(lowerCAmelCase_     )
      key_list.sort()
      letters_list.sort()

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






def 					SCREAMING_SNAKE_CASE_			(		lowerCAmelCase_: Tuple ,	lowerCAmelCase_: str     ):
      return translate_message(lowerCAmelCase_ ,	lowerCAmelCase_ ,	"encrypt"     )






def 					SCREAMING_SNAKE_CASE_			(		lowerCAmelCase_: Union[str, Any] ,	lowerCAmelCase_: Optional[Any]     ):
      return translate_message(lowerCAmelCase_ ,	lowerCAmelCase_ ,	"decrypt"     )






def 					SCREAMING_SNAKE_CASE_			(		lowerCAmelCase_: List[Any] ,	lowerCAmelCase_: str ,	lowerCAmelCase_: Optional[int]     ):
      snake_case_     :			List[str]       =       ""
      snake_case_     :			Dict       =       LETTERS
      snake_case_     :			List[str]       =       key

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

      for symbol in message:
            if symbol.upper() in chars_a:
                  snake_case_     :			Optional[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 					SCREAMING_SNAKE_CASE_			(		):
      snake_case_     :			List[str]       =       list(lowerCAmelCase_     )
      random.shuffle(lowerCAmelCase_     )
      return "".join(lowerCAmelCase_     )


if __name__ == "__main__":
     main()




from __future__ import annotations

UpperCAmelCase							=       "Alexander Joslin"






def 					SCREAMING_SNAKE_CASE_			(		lowerCAmelCase_: int     ):

      if number <= 0:
            snake_case_     :			Dict       =       f"n must be greater than 0. Got n = {number}"
            raise ValueError(lowerCAmelCase_     )

      snake_case_     :			Tuple       =       [number + 1] * (number + 1)

      # starting position
      snake_case_     :			Union[str, Any]       =       0
      for i in range(1 ,	lowerCAmelCase_     ):
            snake_case_     :			int       =       min(table[i + 1] ,	table[i] + 1     )
            # check if out of bounds
            if i * 2 <= number:
                  snake_case_     :			Tuple       =       min(table[i * 2] ,	table[i] + 1     )
            # check if out of bounds
            if i * 3 <= number:
                  snake_case_     :			Dict       =       min(table[i * 3] ,	table[i] + 1     )
      return table[number]


if __name__ == "__main__":
     import doctest

     doctest.testmod()



