
import math
from collections.abc import Iterator
from itertools import takewhile





def 			lowerCamelCase_ (				lowerCamelCase__    ):

				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(lowerCamelCase__    ) + 1    )	, 6    ):
								if number % i == 0 or number % (i + 2) == 0:
												return False
				return True





def 			lowerCamelCase_ (				):
				lowerCamelCase_						=			2
				while True:
								if is_prime(lowerCamelCase__    ):
												yield num
								num += 1





def 			lowerCamelCase_ (				lowerCamelCase__ = 2_0_0_0_0_0_0    ):
				return sum(takewhile(lambda lowerCamelCase__    : x < n	, prime_generator()    )    )


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




def 			lowerCamelCase_ (				lowerCamelCase__	, lowerCamelCase__    ):
				lowerCamelCase_						=			[0 for i in range(r + 1    )]
				# nc0 = 1
				lowerCamelCase_						=			1
				for i in range(1	, n + 1    ):
								# to compute current row from previous row.
								lowerCamelCase_						=			min(lowerCamelCase__	, lowerCamelCase__    )
								while j > 0:
												c[j] += c[j - 1]
												j -= 1
				return c[r]





print(binomial_coefficient(n=1_0, r=5))


