<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def fair_max(x):
 """ Takes a single iterable as an argument and returns the same output as the built-in function max with two output parameters, except that where the maximum value occurs at more than one position in the vector, the index is chosen randomly from these positions as opposed to just choosing the first occurance. """

    value = max(x)
    # List indexes of max value.
    i = [x.index(v) for v in x if v == value]
    # Select index randomly among occurances.
    idx = random.choice(i)

    return idx, value