






from __future__ import annotations

import numpy as np





def 				snake_case  (     lowerCamelCase					):




 '''simple docstring'''







 __lowercase       ,						__lowercase             =  np.shape(__UpperCamelCase					)
 if rows != columns:
  __lowercase             =  (
      """\'table\' has to be of square shaped array but got a """
      F'{rows}x{columns} array:\n{table}'
  )
  raise ValueError(__UpperCamelCase					)

 __lowercase             =  np.zeros((rows, columns)					)
 __lowercase             =  np.zeros((rows, columns)					)
 for i in range(__UpperCamelCase					):
  for j in range(__UpperCamelCase					):
   __lowercase             =  sum(lower[i][k] * upper[k][j] for k in range(__UpperCamelCase					)					)
   if upper[j][j] == 0:
    raise ArithmeticError("""No LU decomposition exists"""					)
   __lowercase             =  (table[i][j] - total) / upper[j][j]
  __lowercase             =  1
  for j in range(__UpperCamelCase				,  __UpperCamelCase					):
   __lowercase             =  sum(lower[i][k] * upper[k][j] for k in range(__UpperCamelCase					)					)
   __lowercase             =  table[i][j] - total
 return lower, upper


if __name__ == "__main__":
      import doctest

      doctest.testmod()









def 				snake_case  (     lowerCamelCase					):




	'''simple docstring'''







	__lowercase             =  """"""
	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 				snake_case  (     lowerCamelCase					):




	'''simple docstring'''







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





def 				snake_case  (     lowerCamelCase				,  lowerCamelCase					):




	'''simple docstring'''







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





def 				snake_case  (     lowerCamelCase				,  lowerCamelCase					):




	'''simple docstring'''







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





def 				snake_case  (     ):




	'''simple docstring'''







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


if __name__ == "__main__":
						import doctest

						doctest.testmod()
						main()

