import doctest


def cube(x):
    """ (num) -> num
    >>> cube(2)
    8
    >>> cube(3)
    27
    """
    return x * x * x


doctest.testmod()
cube(2)

414b597cb719bfd9a56e8c4e2e074bec72ec6ab4
<mask token>

<mask token>


def cube(x):
    """ (num) -> num
    >>> cube(2)
    8
    >>> cube(3)
    27
    """
    return x * x * x


<mask token>

<mask token>


def cube(x):
    """ (num) -> num
    >>> cube(2)
    8
    >>> cube(3)
    27
    """
    return x * x * x


doctest.testmod()
cube(2)

import doctest


def cube(x):
    """ (num) -> num
    >>> cube(2)
    8
    >>> cube(3)
    27
    """
    return x * x * x


doctest.testmod()
cube(2)
