Write a function named median that accepts a list of integers as its argument and returns the median of the numbers in the list.
The median is the number that will appear in the middle if you arrange the elements in order.
Assume that the list is of odd size (so that one sole element constitutes the median) and that the numbers in the list are between 0 and 99 inclusive.
For example, the median of [5, 2, 4, 17, 55, 4, 3, 26, 18, 2, 17] is 5, and the median of [42, 37, 1, 97, 1, 2, 7, 42, 3, 25, 89, 15, 10, 29, 27] is 25.
