def    lowerCAmelCase_ (     __A							)     ->				str:







      '''simple docstring'''


      UpperCAmelCase__								=  ""
      for ch in key:
            if ch == " " or ch not in key_no_dups and ch.isalpha():
                  key_no_dups += ch
      return key_no_dups




def    lowerCAmelCase_ (     __A							)     ->				dict[str, str]:







      '''simple docstring'''


      UpperCAmelCase__								=  [chr(i + 65							) for i in range(26							)]
      # Remove duplicate characters from key
      UpperCAmelCase__								=  remove_duplicates(key.upper()							)
      UpperCAmelCase__								=  len(__A							)
      # First fill cipher with key characters
      UpperCAmelCase__								=  {alphabet[i]: char for i, char in enumerate(__A							)}
      # Then map remaining characters in alphabet to
      # the alphabet from the beginning
      for i in range(len(__A							),  26							):
            UpperCAmelCase__								=  alphabet[i - offset]
            # Ensure we are not mapping letters to letters previously mapped
            while char in key:
                  offset -= 1
                  UpperCAmelCase__								=  alphabet[i - offset]
            UpperCAmelCase__								=  char
      return cipher_alphabet




def    lowerCAmelCase_ (     __A,  __A							)     ->				str:







      '''simple docstring'''


      return "".join(cipher_map.get(__A,  __A							) for ch in message.upper()							)




def    lowerCAmelCase_ (     __A,  __A							)     ->				str:







      '''simple docstring'''


      UpperCAmelCase__								=  {v: k for k, v in cipher_map.items()}
      return "".join(rev_cipher_map.get(__A,  __A							) for ch in message.upper()							)




def    lowerCAmelCase_ (     )     ->				None:







      '''simple docstring'''


      UpperCAmelCase__								=  input("Enter message to encode or decode: "							).strip()
      UpperCAmelCase__								=  input("Enter keyword: "							).strip()
      UpperCAmelCase__								=  input("Encipher or decipher? E/D:"							).strip()[0].lower()
      try:
            UpperCAmelCase__								=  {"e": encipher, "d": decipher}[option]
      except KeyError:
            raise KeyError("invalid input option"							)
      UpperCAmelCase__								=  create_cipher_map(__A							)
      print(func(__A,  __A							)							)


if __name__ == "__main__":
      import doctest

      doctest.testmod()
      main()









'''simple docstring'''







from __future__ import annotations





def 						snake_case_							(_a	:							Dict    ,   _a	:							str    ,   _a	:							Optional[Any]    ,   _a	:							List[str]     ):  # noqa: E741
    while r - l > 1:
        UpperCAmelCase			       =		(l + r) // 2
        if v[m] >= key:
            UpperCAmelCase			       =		m
        else:
            UpperCAmelCase			       =		m  # noqa: E741
    return r





def 						snake_case_							(_a	:							list[int]     ):
    if len(_a     ) == 0:
        return 0

    UpperCAmelCase			       =		[0] * len(_a     )
    UpperCAmelCase			       =		1

    UpperCAmelCase			       =		v[0]

    for i in range(1    ,   len(_a     )     ):
        if v[i] < tail[0]:
            UpperCAmelCase			       =		v[i]
        elif v[i] > tail[length - 1]:
            UpperCAmelCase			       =		v[i]
            length += 1
        else:
            UpperCAmelCase			       =		v[i]

    return length


if __name__ == "__main__":
   import doctest

   doctest.testmod()




