Definition: In this task, you are given a list of integers you need to calculate and return the range of the integers which is the difference between maximum and minimum element in the list.
Input: [258, 453, 485, 246, 242, 312, 327, 319, 171, 39, 288, 292, 81, 93, 189, 223, 467, 489, 95, 408]
Output:
450