
"""simple docstring"""




from string import ascii_uppercase

A__      :	Optional[Any]          =    {char: i for i, char in enumerate(ascii_uppercase)}
A__      :	Optional[Any]          =    dict(enumerate(ascii_uppercase))



def 							a__ (				lowerCAmelCase	:       str       ,    lowerCAmelCase	:       str		):






					'''simple docstring'''
					UpperCAmelCase__							: Any 							=						len(lowerCAmelCase		)
					UpperCAmelCase__							: Any 							=						0
					while True:
										if x == i:
															UpperCAmelCase__							: Union[str, Any] 							=						0
										if len(lowerCAmelCase		) == len(lowerCAmelCase		):
															break
										key += key[i]
										i += 1
					return key



def 							a__ (				lowerCAmelCase	:       str       ,    lowerCAmelCase	:       str		):






					'''simple docstring'''
					UpperCAmelCase__							: Tuple 							=						""
					UpperCAmelCase__							: Tuple 							=						0
					for letter in message:
										if letter == " ":
															cipher_text += " "
										else:
															UpperCAmelCase__							: List[str] 							=						(dicta[letter] - dicta[key_new[i]]) % 26
															i += 1
															cipher_text += dicta[x]
					return cipher_text



def 							a__ (				lowerCAmelCase	:       str       ,    lowerCAmelCase	:       str		):






					'''simple docstring'''
					UpperCAmelCase__							: Union[str, Any] 							=						""
					UpperCAmelCase__							: Tuple 							=						0
					for letter in cipher_text:
										if letter == " ":
															or_txt += " "
										else:
															UpperCAmelCase__							: List[str] 							=						(dicta[letter] + dicta[key_new[i]] + 26) % 26
															i += 1
															or_txt += dicta[x]
					return or_txt



def 							a__ (				):






					'''simple docstring'''
					UpperCAmelCase__							: Optional[Any] 							=						"THE GERMAN ATTACK"
					UpperCAmelCase__							: Optional[int] 							=						"SECRET"
					UpperCAmelCase__							: Union[str, Any] 							=						generate_key(lowerCAmelCase       ,    lowerCAmelCase		)
					UpperCAmelCase__							: Optional[int] 							=						cipher_text(lowerCAmelCase       ,    lowerCAmelCase		)
					print(F"Encrypted Text = {s}"		)
					print(F"Original Text = {original_text(lowerCAmelCase       ,    lowerCAmelCase		)}"		)


if __name__ == "__main__":
				import doctest

				doctest.testmod()
				main()





"""simple docstring"""




from math import isqrt



def 							a__ (				lowerCAmelCase	:       int		):






     '''simple docstring'''
     UpperCAmelCase__							: Tuple 							=						[True] * max_number
     for i in range(2       ,    isqrt(max_number - 1		) + 1		):
          if is_prime[i]:
               for j in range(i**2       ,    lowerCAmelCase       ,    lowerCAmelCase		):
                    UpperCAmelCase__							: List[Any] 							=						False

     return [i for i in range(2       ,    lowerCAmelCase		) if is_prime[i]]



def 							a__ (				lowerCAmelCase	:       int = 10**8		):






     '''simple docstring'''
     UpperCAmelCase__							: Dict 							=						calculate_prime_numbers(max_number // 2		)

     UpperCAmelCase__							: Optional[int] 							=						0
     UpperCAmelCase__							: Optional[int] 							=						0
     UpperCAmelCase__							: Tuple 							=						len(lowerCAmelCase		) - 1
     while left <= right:
          while prime_numbers[left] * prime_numbers[right] >= max_number:
               right -= 1
          semiprimes_count += right - left + 1
          left += 1

     return semiprimes_count


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



