



def  UpperCamelCase						(       _A			:				str    )->       str:





      """simple docstring"""





      A__							=       ""
      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  UpperCamelCase						(       _A			:				str    )->       dict[str, str]:





      """simple docstring"""





      A__							=       [chr(i + 65    ) for i in range(26    )]
      # Remove duplicate characters from key
      A__							=       remove_duplicates(key.upper()    )
      A__							=       len(_A    )
      # First fill cipher with key characters
      A__							=       {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    ):
            A__							=       alphabet[i - offset]
            # Ensure we are not mapping letters to letters previously mapped
            while char in key:
                  offset -= 1
                  A__							=       alphabet[i - offset]
            A__							=       char
      return cipher_alphabet
def  UpperCamelCase						(       _A			:				str			,							_A			:				dict[str, str]    )->       str:





      """simple docstring"""





      return "".join(cipher_map.get(_A			,							_A    ) for ch in message.upper()    )
def  UpperCamelCase						(       _A			:				str			,							_A			:				dict[str, str]    )->       str:





      """simple docstring"""





      A__							=       {v: k for k, v in cipher_map.items()}
      return "".join(rev_cipher_map.get(_A			,							_A    ) for ch in message.upper()    )
def  UpperCamelCase						(       )->       None:





      """simple docstring"""





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


if __name__ == "__main__":
      import doctest

      doctest.testmod()
      main()










from __future__ import annotations






class      UpperCamelCase    :



	def __init__(       self			,	UpperCAmelCase__=None		):
							A__							=       data
							A__							=       None



	def __repr__(       self		):
							A__							=       []
							A__							=       self
							while temp:
													string_rep.append(F"""{temp.data}"""		)
													A__							=       temp.next
							return "->".join(UpperCAmelCase__		)





def  UpperCamelCase						(       _A			:				list    )->       Dict:





						"""simple docstring"""





						if not elements_list:
												raise Exception("The Elements List is empty"    )

						A__							=       A__							=       Node(elements_list[0]    )
						for i in range(1			,							len(_A    )    ):
												A__							=       Node(elements_list[i]    )
												A__							=       current.next
						return head
def  UpperCamelCase						(       _A			:				Node    )->       None:





						"""simple docstring"""





						if head_node is not None and isinstance(_A			,							_A    ):
												print_reverse(head_node.next    )
												print(head_node.data    )
def  UpperCamelCase						(       )->       Tuple:





						"""simple docstring"""





						from doctest import testmod

						testmod()

						A__							=       make_linked_list([14, 52, 14, 12, 43]    )
						print("Linked List:"    )
						print(_A    )
						print("Elements in Reverse:"    )
						print_reverse(_A    )


if __name__ == "__main__":
						main()





