"""simple docstring"""







import math
def     __UpperCAmelCase							(       UpperCAmelCase_       :							int    )				->     bool:

	'''simple docstring'''





	if 1 < number < 4:
		# 2 and 3 are primes
		return True
	elif number < 2 or number % 2 == 0 or number % 3 == 0:
		# Negatives, 0, 1, all even numbers, all multiples of 3 are not primes
		return False

	# All primes number are in format of 6k +/- 1
	for i in range(5     ,				int(math.sqrt(UpperCAmelCase_    ) + 1    )     ,				6    ):
		if number % i == 0 or number % (i + 2) == 0:
			return False
	return True
def     __UpperCAmelCase							(       UpperCAmelCase_       :							int = 2_00_00_00    )				->     int:

	'''simple docstring'''





	return sum(num for num in range(3     ,				UpperCAmelCase_     ,				2    ) if is_prime(UpperCAmelCase_    )    ) + 2 if n > 2 else 0


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






"""simple docstring"""







def     __UpperCAmelCase							(       UpperCAmelCase_       :							int = 1_00    )				->     int:

	'''simple docstring'''





	__snake_case     :				Any 						=					1
	__snake_case     :				Tuple 						=					0
	for i in range(1     ,				num + 1    ):
		fact *= i

	for j in str(UpperCAmelCase_    ):
		result += int(UpperCAmelCase_    )

	return result


if __name__ == "__main__":
	print(solution(int(input("Enter the Number: ").strip())))





