





"""simple docstring"""






from math import factorial

def       __A (     a_  :int = 1_00)						->						int:
				return sum(int(a_) for x in str(factorial(a_)))


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






"""simple docstring"""






def       __A (     a_  :int				,    a_  :int)						->						str:
				if a < 0 or b < 0:
								raise ValueError('''the value of both inputs must be positive''')

				__a	:  Union[str, Any]         =					str(bin(a_))[2:]  # remove the leading "0b"
				__a	:  Union[str, Any]         =					str(bin(a_))[2:]  # remove the leading "0b"

				__a	:  Optional[Any]         =					max(len(a_)				,    len(a_))

				return "0b" + "".join(
				    str(int(char_a != char_b))
				    for char_a, char_b in zip(a_binary.zfill(a_)				,    b_binary.zfill(a_)))


if __name__ == "__main__":
		import doctest

		doctest.testmod()