






def 						__UpperCAmelCase      (					a_ = 4_00_00_00):
							snake_case_           =							1
							snake_case_           =							2
							snake_case_           =							0
							while j <= n:
														if j % 2 == 0:
																					total += j
														snake_case_      ,		snake_case_           =							j, i + j

							return total


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













def 						__UpperCAmelCase      (					a_):
							return 1 if input_a == 0 else 0





def 						__UpperCAmelCase      (					):
							assert not_gate(0) == 1
							assert not_gate(1) == 0


if __name__ == "__main__":
	print(not_gate(0))
	print(not_gate(1))





