





import itertools
import string
from collections.abc import Generator, Iterable


def       SCREAMING_SNAKE_CASE__  (       _lowercase     : Iterable[str]   ,    _lowercase     : int			)   ->							Generator[tuple[str, ...], None, None]:




		'''simple docstring'''
		lowercase__					:      Union[str, Any]      =		iter(_UpperCamelCase			)
		while True:
				lowercase__					:      str      =		tuple(itertools.islice(_UpperCamelCase   ,    _UpperCamelCase			)			)
				if not chunk:
						return
				yield chunk


def       SCREAMING_SNAKE_CASE__  (       _lowercase     : str			)   ->							str:




		'''simple docstring'''
		lowercase__					:      Tuple      =		''.join([c.upper() for c in dirty if c in string.ascii_letters]			)
		lowercase__					:      Union[str, Any]      =		''

		if len(_UpperCamelCase			) < 2:
				return dirty

		for i in range(len(_UpperCamelCase			) - 1			):
				clean += dirty[i]

				if dirty[i] == dirty[i + 1]:
						clean += "X"

		clean += dirty[-1]

		if len(_UpperCamelCase			) & 1:
				clean += "X"

		return clean


def       SCREAMING_SNAKE_CASE__  (       _lowercase     : str			)   ->							list[str]:




		'''simple docstring'''
		lowercase__					:      List[Any]      =		'ABCDEFGHIKLMNOPQRSTUVWXYZ'
		# we're using a list instead of a '2d' array because it makes the math
		# for setting up the table and doing the actual encoding/decoding simpler
		lowercase__					:      Any      =		[]

		# copy key chars into the table if they are in `alphabet` ignoring duplicates
		for char in key.upper():
				if char not in table and char in alphabet:
						table.append(_UpperCamelCase			)

						 # fill the rest of the table in with the remaining alphabet chars
		for char in alphabet:
				if char not in table:
						table.append(_UpperCamelCase			)

		return table


def       SCREAMING_SNAKE_CASE__  (       _lowercase     : str   ,    _lowercase     : str			)   ->							str:




		'''simple docstring'''
		lowercase__					:      Dict      =		generate_table(_UpperCamelCase			)
		lowercase__					:      Optional[int]      =		prepare_input(_UpperCamelCase			)
		lowercase__					:      Any      =		''

		# https://en.wikipedia.org/wiki/Playfair_cipher#Description
		for chara, chara in chunker(_UpperCamelCase   ,    2			):
				lowercase__   ,				lowercase__					:      Dict      =		divmod(table.index(_UpperCamelCase			)   ,    5			)
				lowercase__   ,				lowercase__					:      Optional[int]      =		divmod(table.index(_UpperCamelCase			)   ,    5			)

				if rowa == rowa:
						ciphertext += table[rowa * 5 + (cola + 1) % 5]
						ciphertext += table[rowa * 5 + (cola + 1) % 5]
				elif cola == cola:
						ciphertext += table[((rowa + 1) % 5) * 5 + cola]
						ciphertext += table[((rowa + 1) % 5) * 5 + cola]
				else:  # rectangle
						ciphertext += table[rowa * 5 + cola]
						ciphertext += table[rowa * 5 + cola]

		return ciphertext





def       SCREAMING_SNAKE_CASE__  (       _lowercase     : str   ,    _lowercase     : str			)   ->							str:




		'''simple docstring'''
		lowercase__					:      Tuple      =		generate_table(_UpperCamelCase			)
		lowercase__					:      Optional[int]      =		''

		# https://en.wikipedia.org/wiki/Playfair_cipher#Description
		for chara, chara in chunker(_UpperCamelCase   ,    2			):
				lowercase__   ,				lowercase__					:      str      =		divmod(table.index(_UpperCamelCase			)   ,    5			)
				lowercase__   ,				lowercase__					:      Dict      =		divmod(table.index(_UpperCamelCase			)   ,    5			)

				if rowa == rowa:
						plaintext += table[rowa * 5 + (cola - 1) % 5]
						plaintext += table[rowa * 5 + (cola - 1) % 5]
				elif cola == cola:
						plaintext += table[((rowa - 1) % 5) * 5 + cola]
						plaintext += table[((rowa - 1) % 5) * 5 + cola]
				else:  # rectangle
						plaintext += table[rowa * 5 + cola]
						plaintext += table[rowa * 5 + cola]

		return plaintext





import baseaa


def 							__lowerCAmelCase     (							_UpperCamelCase		:	str						)		->				bytes:
 '''simple docstring'''


 return baseaa.aaaencode(string.encode('utf-8'						)						)


def 							__lowerCAmelCase     (							_UpperCamelCase		:	bytes						)		->				str:
 '''simple docstring'''


 return baseaa.aaadecode(_UpperCamelCase						).decode('utf-8'						)


if __name__ == "__main__":
      import doctest

      doctest.testmod()

