'''simple docstring'''




def 							lowerCamelCase	(      UpperCAmelCase__       :					int = 10      ,      UpperCAmelCase__       :					int = 22 )			->      int:
							lowercase_					:			Optional[Any]										=       range(1      ,      UpperCAmelCase__ )
							lowercase_					:			str										=       range(1      ,      UpperCAmelCase__ )
							return sum(
							    1 for power in powers for base in bases if len(str(base**power ) ) == power )


if __name__ == "__main__":
						print(f"""{solution(10, 22) = }""")






'''simple docstring'''




import math
import unittest




def 							lowerCamelCase	(      UpperCAmelCase__       :					int )			->      bool:
							assert isinstance(UpperCAmelCase__      ,      UpperCAmelCase__ ) and (
							    number >= 0
							), "'number' must been an int and positive"

							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





class     __magic_name__						(    unittest.TestCase):







			def 	SCREAMING_SNAKE_CASE_     (	self				:  Dict    ):
										self.assertTrue(is_prime(2    )    )
										self.assertTrue(is_prime(3    )    )
										self.assertTrue(is_prime(5    )    )
										self.assertTrue(is_prime(7    )    )
										self.assertTrue(is_prime(11    )    )
										self.assertTrue(is_prime(13    )    )
										self.assertTrue(is_prime(17    )    )
										self.assertTrue(is_prime(19    )    )
										self.assertTrue(is_prime(23    )    )
										self.assertTrue(is_prime(29    )    )







			def 	SCREAMING_SNAKE_CASE_     (	self				:  Optional[Any]    ):
										with self.assertRaises(lowercase_    ):
																	is_prime(-19    )
										self.assertFalse(
										    is_prime(0    )				,			"""Zero doesn't have any positive factors, primes must have exactly two."""				,			)
										self.assertFalse(
										    is_prime(1    )				,			"""One only has 1 positive factor, primes must have exactly two."""				,			)
										self.assertFalse(is_prime(2 * 2    )    )
										self.assertFalse(is_prime(2 * 3    )    )
										self.assertFalse(is_prime(3 * 3    )    )
										self.assertFalse(is_prime(3 * 5    )    )
										self.assertFalse(is_prime(3 * 5 * 7    )    )


if __name__ == "__main__":
						unittest.main()





