




'''simple docstring'''


def 						snake_case_       (UpperCamelCase			:    int ):





							'''simple docstring'''


							if num <= 0:
														raise ValueError('''Input must be a positive integer''' )

							_a      	=							[True] * (num + 1)

							_a      	=							2
							while p * p <= num:
														if primes[p]:
																					for i in range(p * p					,		num + 1					,		UpperCamelCase ):
																												_a      	=							False
														p += 1

							return [prime for prime in range(2					,		num + 1 ) if primes[prime]]


if __name__ == "__main__":
				import doctest

				doctest.testmod()

				_snake_case : Optional[Any]  				=						int(input('Enter a positive integer: ').strip())
				print(prime_sieve_eratosthenes(user_num))





import string






def 		_A		(		_lowercase )					-> None:


     """simple docstring"""


     for key in range(len(string.ascii_uppercase ) ):
          __UpperCamelCase =			''
          for symbol in message:
               if symbol in string.ascii_uppercase:
                    __UpperCamelCase =			string.ascii_uppercase.find(_lowercase )
                    __UpperCamelCase =			num - key
                    if num < 0:
                         __UpperCamelCase =			num + len(string.ascii_uppercase )
                    __UpperCamelCase =			translated + string.ascii_uppercase[num]
               else:
                    __UpperCamelCase =			translated + symbol
          print(f'''Decryption using Key #{key}: {translated}''' )






def 		_A		(		)					-> None:


     """simple docstring"""


     __UpperCamelCase =			input('Encrypted message: ' )
     __UpperCamelCase =			message.upper()
     decrypt(_lowercase )


if __name__ == "__main__":
    import doctest

    doctest.testmod()
    main()


