



'''simple docstring'''

def     __UpperCamelCase					(				_lowercase = "mytext.txt",					_lowercase = False       )			->      None:
	import socket

	_lowercase       :							Tuple  	=		1_2312  # Reserve a port for your service.
	_lowercase       :							Optional[Any]  	=		socket.socket()  # Create a socket object
	_lowercase       :							Any  	=		socket.gethostname()  # Get local machine name
	sock.bind((host, port)       )  # Bind to the port
	sock.listen(5       )  # Now wait for client connection.

	print('Server listening....'       )

	while True:
		_lowercase	,     _lowercase       :							Optional[int]  	=		sock.accept()  # Establish connection with client.
		print(f'''Got connection from {addr}'''       )
		_lowercase       :							Any  	=		conn.recv(1024       )
		print(f'''Server received: {data = }'''       )

		with open(_lowercase,					'rb'       ) as in_file:
			_lowercase       :							str  	=		in_file.read(1024       )
			while data:
				conn.send(_lowercase       )
				print(f'''Sent {data!r}'''       )
				_lowercase       :							List[str]  	=		in_file.read(1024       )

		print('Done sending'       )
		conn.close()
		if testing:  # Allow the test to complete
			break

	sock.shutdown(1       )
	sock.close()


if __name__ == "__main__":
		send_file()





'''simple docstring'''

from __future__ import annotations

import sys







def     __UpperCamelCase					(				_lowercase       )			->      int:
	if n < 0:
		raise ValueError('Negative arguments are not supported'       )
	return _fib(_lowercase       )[0]







def     __UpperCamelCase					(				_lowercase       )			->      tuple[int, int]:
	if n == 0:  # (F(0), F(1))
		return (0, 1)

	# F(2n) = F(n)[2F(n+1) − F(n)]
	# F(2n+1) = F(n+1)^2+F(n)^2
	_lowercase	,     _lowercase       :							List[str]  	=		_fib(n // 2       )
	_lowercase       :							Dict  	=		a * (b * 2 - a)
	_lowercase       :							Union[str, Any]  	=		a * a + b * b
	return (d, c + d) if n % 2 else (c, d)


if __name__ == "__main__":
		_A					:     Optional[Any]      =int(sys.argv[1])
		print(F'''fibonacci({n}) is {fibonacci(n)}''')
