>>> from switch import min_x_max

>>> a = [8, -88, 2, -4, 25, 0]
>>> min_x_max(a)
>>> a
[8, 25, 2, -4, -88, 0]

>>> b = [-34.0]
>>> min_x_max(b)
>>> b
[-34.0]

>>> c = ['pear', 'apple', 'melon', 'watermelon', 'orange']
>>> min_x_max(c)
>>> c
['pear', 'watermelon', 'melon', 'apple', 'orange']