UpperCAmelCase_           =				{'''a''': ['''c''', '''b'''], '''b''': ['''d''', '''e'''], '''c''': [], '''d''': [], '''e''': []}
UpperCAmelCase_           =				['''a''', '''b''', '''c''', '''d''', '''e''']




def    lowerCAmelCase_  (		lowercase:				str	,       lowercase:				Union[str, Any]	,       lowercase:				str		)     ->					Union[str, Any]:







 '''simple docstring'''
 _UpperCamelCase:  Tuple    						=			start
 # add current to visited
 visited.append(lowercase		)
 _UpperCamelCase:  Any    						=			edges[current]
 for neighbor in neighbors:
  # if neighbor not in visited, visit
  if neighbor not in visited:
   _UpperCamelCase:  List[str]    						=			topological_sort(lowercase	,       lowercase	,       lowercase		)
    # if all neighbors visited add current to sort
 sort.append(lowercase		)
 # if all vertices haven't been visited select a new one to visit
 if len(lowercase		) != len(lowercase		):
  for vertice in vertices:
   if vertice not in visited:
    _UpperCamelCase:  Optional[Any]    						=			topological_sort(lowercase	,       lowercase	,       lowercase		)
    # return sort
 return sort


if __name__ == "__main__":
  UpperCAmelCase_           =				topological_sort('''a''', [], [])
  print(sort)






from string import ascii_uppercase

UpperCAmelCase_							=				{char: i for i, char in enumerate(ascii_uppercase)}
UpperCAmelCase_							=				dict(enumerate(ascii_uppercase))





def  __magic_name__  (				lowercase				,       lowercase				)				-> str:

							"""simple docstring"""



							lowercase_	:   Dict  				=     len(lowercase				)
							lowercase_	:   Tuple  				=     0
							while True:
														if x == i:
																					lowercase_	:   Dict  				=     0
														if len(lowercase				) == len(lowercase				):
																					break
														key += key[i]
														i += 1
							return key





def  __magic_name__  (				lowercase				,       lowercase				)				-> str:

							"""simple docstring"""



							lowercase_	:   Any  				=     """"""
							lowercase_	:   Optional[Any]  				=     0
							for letter in message:
														if letter == " ":
																					cipher_text += " "
														else:
																					lowercase_	:   Any  				=     (dicta[letter] - dicta[key_new[i]]) % 26
																					i += 1
																					cipher_text += dicta[x]
							return cipher_text





def  __magic_name__  (				lowercase				,       lowercase				)				-> str:

							"""simple docstring"""



							lowercase_	:   Optional[Any]  				=     """"""
							lowercase_	:   Optional[Any]  				=     0
							for letter in cipher_text:
														if letter == " ":
																					or_txt += " "
														else:
																					lowercase_	:   Optional[int]  				=     (dicta[letter] + dicta[key_new[i]] + 26) % 26
																					i += 1
																					or_txt += dicta[x]
							return or_txt





def  __magic_name__  (				)				-> None:

							"""simple docstring"""



							lowercase_	:   Union[str, Any]  				=     """THE GERMAN ATTACK"""
							lowercase_	:   str  				=     """SECRET"""
							lowercase_	:   int  				=     generate_key(lowercase				,       lowercase				)
							lowercase_	:   List[str]  				=     cipher_text(lowercase				,       lowercase				)
							print(f"""Encrypted Text = {s}"""				)
							print(f"""Original Text = {original_text(lowercase				,       lowercase				)}"""				)


if __name__ == "__main__":
							import doctest

							doctest.testmod()
							main()