






"""simple docstring"""







import os
import sys
import time

from . import transposition_cipher as trans_cipher





def 						lowercase__()				->None:




						"""simple docstring"""



						lowercase__				:      Dict=       "Prehistoric Men.txt"
						lowercase__				:      str=       "Output.txt"
						lowercase__				:      int=       int(input("Enter key: "						)						)
						lowercase__				:      Optional[Any]=       input("Encrypt/Decrypt [e/d]: "						)

						if not os.path.exists(A						):
												print(f'''File {input_file} does not exist. Quitting...'''						)
												sys.exit()
						if os.path.exists(A						):
												print(f'''Overwrite {output_file}? [y/n]'''						)
												lowercase__				:      Tuple=       input("> "						)
												if not response.lower().startswith("y"						):
																		sys.exit()

						lowercase__				:      Optional[int]=       time.time()
						if mode.lower().startswith("e"						):
												with open(A						) as f:
																		lowercase__				:      int=       f.read()
												lowercase__				:      int=       trans_cipher.encrypt_message(A					,		A						)
						elif mode.lower().startswith("d"						):
												with open(A						) as f:
																		lowercase__				:      Union[str, Any]=       f.read()
												lowercase__				:      List[Any]=       trans_cipher.decrypt_message(A					,		A						)

						with open(A					,		"w"						) as output_obj:
												output_obj.write(A						)

						lowercase__				:      str=       round(time.time() - start_time					,		2						)
						print(("Done (", total_time, "seconds )")						)


if __name__ == "__main__":
			main()














"""simple docstring"""







import math
from decimal import Decimal, getcontext





def 						lowercase__(A = 4_000_000						)				->int:




						"""simple docstring"""



						try:
												lowercase__				:      int=       int(A						)
						except (TypeError, ValueError):
												raise TypeError("Parameter n must be int or castable to int."						)
						if n <= 0:
												raise ValueError("Parameter n must be greater than or equal to one."						)
						lowercase__				:      Dict=       100
						lowercase__				:      Optional[Any]=       (Decimal(5						) ** Decimal(0.5						) + 1) / Decimal(2						)

						lowercase__				:      str=       (math.floor(math.log(n * (phi + 2)					,		A						) - 1						) // 3) * 3 + 2
						lowercase__				:      Optional[Any]=       Decimal(round(phi ** Decimal(index + 1						)						)						) / (phi + 2)
						lowercase__				:      Tuple=       num // 2
						return int(A						)


if __name__ == "__main__":
			print(F"""{solution() = }""")






