
"""simple docstring"""


A_    							=					{
    "km/h": 1.0,
    "m/s": 3.6,
    "mph": 1.609344,
    "knot": 1.852,
}

A_    							=					{
    "km/h": 1.0,
    "m/s": 0.277777778,
    "mph": 0.621371192,
    "knot": 0.539956803,
}






def  lowercase						(	lowerCAmelCase__	,lowerCAmelCase__	,lowerCAmelCase__						):

			if unit_to not in speed_chart or unit_from not in speed_chart_inverse:
						lowerCamelCase_					=  (
						    f"Incorrect \'from_type\' or \'to_type\' value: {unit_from!r}, {unit_to!r}\n"
						    f"Valid values are: {', '.join(__a						)}"
						)
						raise ValueError(__a						)
			return round(speed * speed_chart[unit_from] * speed_chart_inverse[unit_to]	,3						)


if __name__ == "__main__":
						import doctest

						doctest.testmod()










def   __lowerCamelCase   (				__a  :int = 4_0_0_0_0_0_0       )						->							int:






		"""simple docstring"""

		A__     =  []
		A__ ,     A__     =  0, 1
		while b <= n:
				if b % 2 == 0:
						even_fibs.append(__a       )
				A__ ,     A__     =  b, a + b
		return sum(__a       )


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



