






import math



def        _lowerCamelCase(      lowerCAmelCase__					:		int   ):





				'''simple docstring'''







				return sum(int(lowerCAmelCase__   ) for digit in str(lowerCAmelCase__   )   )



def        _lowerCamelCase(      lowerCAmelCase__					:		int = 30   ):





				'''simple docstring'''







				SCREAMING_SNAKE_CASE_ :						List[str]    				= []
				for digit in range(2     ,     100   ):
								for power in range(2     ,     100   ):
												SCREAMING_SNAKE_CASE_ :						List[Any]    				= int(math.pow(lowerCAmelCase__     ,     lowerCAmelCase__   )   )
												if digit == digit_sum(lowerCAmelCase__   ):
																digit_to_powers.append(lowerCAmelCase__   )

				digit_to_powers.sort()
				return digit_to_powers[n - 1]


if __name__ == "__main__":
				print(solution())







def        _lowerCamelCase(      lowerCAmelCase__					:		float     ,     lowerCAmelCase__					:		float     ,     lowerCAmelCase__					:		float   ):





				'''simple docstring'''







				if mass < 0:
								raise ValueError('The mass of the body cannot be negative'   )
				if radius <= 0:
								raise ValueError('The radius is always a positive non zero integer'   )
				return (mass * (velocity) ** 2) / radius


if __name__ == "__main__":
				import doctest

				doctest.testmod(verbose=True)