


from math import exp
def 				UpperCamelCase_	(					__snake_case      :    float  )->   Optional[int]:




						'''simple docstring'''
						return 8 * x - 2 * exp(-x  )
def 				UpperCamelCase_	(					__snake_case      :    float						,      __snake_case      :    float						,      __snake_case      :    int  )->   str:




						'''simple docstring'''
						__magic_name__					=      lower_bound
						__magic_name__					=      upper_bound
						for _ in range(0						,      __lowercase  ):
												__magic_name__		,      __magic_name__					=      xa, xa - (f(__lowercase  ) * (xa - xa)) / (f(__lowercase  ) - f(__lowercase  ))
						return xa


if __name__ == "__main__":
					print(f'''Example: {secant_method(1, 3, 2)}''')








def        __SCREAMING_SNAKE_CASE	(				__lowercase:		int = 10_00):



  '''simple docstring'''






  __lowerCAmelCase								=					0
  for i in range(__lowercase):
    if i % 3 == 0 or i % 5 == 0:
      result += i
  return result


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