



'''simple docstring'''





SCREAMING_SNAKE_CASE__          =  {
    "km/h": 1.0,
    "m/s": 3.6,
    "mph": 1.60_9344,
    "knot": 1.852,
}

SCREAMING_SNAKE_CASE__          =  {
    "km/h": 1.0,
    "m/s": 0.2_7777_7778,
    "mph": 0.6_2137_1192,
    "knot": 0.5_3995_6803,
}




def 							lowerCamelCase	(					_snake_case	:    float  ,_snake_case	:    str  ,_snake_case	:    str							):





    '''simple docstring'''


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


if __name__ == "__main__":
 import doctest

 doctest.testmod()









'''simple docstring'''





def 							lowerCamelCase	(					_snake_case	:    int = 50_000_000							):





    '''simple docstring'''


    lowercase__									=    set()
    lowercase__									=    int((limit - 24) ** (1 / 2)							)

    lowercase__									=    set(range(3  ,prime_square_limit + 1  ,2							)							)
    primes.add(2							)
    for p in range(3  ,prime_square_limit + 1  ,2							):
        if p not in primes:
            continue
        primes.difference_update(set(range(p * p  ,prime_square_limit + 1  ,_snake_case							)							)							)

    for primea in primes:
        lowercase__									=    primea * primea
        for primea in primes:
            lowercase__									=    primea * primea * primea
            if square + cube >= limit - 16:
                break
            for primea in primes:
                lowercase__									=    primea * primea * primea * primea
                lowercase__									=    square + cube + tetr
                if total >= limit:
                    break
                ret.add(_snake_case							)

    return len(_snake_case							)


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




