




from __future__ import annotations







class a :
						"""simple docstring"""

						def __init__( self :     Dict				,							lowerCamelCase__ :     int=None				)    ->						str:
													"""simple docstring"""


													__lowercase      =    data
													__lowercase      =    None






						def __repr__( self :     Dict				)    ->						List[Any]:
													"""simple docstring"""


													__lowercase      =    []
													__lowercase      =    self
													while temp:
																				string_rep.append(f'{temp.data}'				)
																				__lowercase      =    temp.next
													return "->".join(lowerCamelCase__				)







def 		_A(       UpperCamelCase__							:			list				)    -> Optional[Any]:
							'''simple docstring'''


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

							__lowercase      =    __lowercase      =    Node(elements_list[0]				)
							for i in range(1				,       len(UpperCamelCase__				)				):
														__lowercase      =    Node(elements_list[i]				)
														__lowercase      =    current.next
							return head







def 		_A(       UpperCamelCase__							:			Node				)    -> None:
							'''simple docstring'''


							if head_node is not None and isinstance(UpperCamelCase__				,       UpperCamelCase__				):
														print_reverse(head_node.next				)
														print(head_node.data				)







def 		_A(       )    -> Optional[Any]:
							'''simple docstring'''


							from doctest import testmod

							testmod()

							__lowercase      =    make_linked_list([14, 52, 14, 12, 43]				)
							print('''Linked List:'''				)
							print(UpperCamelCase__				)
							print('''Elements in Reverse:'''				)
							print_reverse(UpperCamelCase__				)


if __name__ == "__main__":
			main()












import math







def 		_A(       )    -> None:
							'''simple docstring'''


							__lowercase      =    input('''Enter message: '''				)
							__lowercase      =    int(input(F'Enter key [2-{len(UpperCamelCase__				) - 1}]: '				)				)
							__lowercase      =    input('''Encryption/Decryption [e/d]: '''				)

							if mode.lower().startswith('''e'''				):
														__lowercase      =    encrypt_message(UpperCamelCase__				,       UpperCamelCase__				)
							elif mode.lower().startswith('''d'''				):
														__lowercase      =    decrypt_message(UpperCamelCase__				,       UpperCamelCase__				)

							# Append pipe symbol (vertical bar) to identify spaces at the end.
							print(F'Output:\n{text + "|"}'				)







def 		_A(       UpperCamelCase__							:			int				,       UpperCamelCase__							:			str				)    -> str:
							'''simple docstring'''


							__lowercase      =    [''''''] * key
							for col in range(UpperCamelCase__				):
														__lowercase      =    col
														while pointer < len(UpperCamelCase__				):
																					cipher_text[col] += message[pointer]
																					pointer += key
							return "".join(UpperCamelCase__				)







def 		_A(       UpperCamelCase__							:			int				,       UpperCamelCase__							:			str				)    -> str:
							'''simple docstring'''


							__lowercase      =    math.ceil(len(UpperCamelCase__				) / key				)
							__lowercase      =    key
							__lowercase      =    (num_cols * num_rows) - len(UpperCamelCase__				)
							__lowercase      =    [''''''] * num_cols
							__lowercase      =    0
							__lowercase      =    0

							for symbol in message:
														plain_text[col] += symbol
														col += 1

														if (
														    (col == num_cols)
														    or (col == num_cols - 1)
														    and (row >= num_rows - num_shaded_boxes)
														):
																					__lowercase      =    0
																					row += 1

							return "".join(UpperCamelCase__				)


if __name__ == "__main__":
			import doctest

			doctest.testmod()
			main()






