Instructions: 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: [387, 130, 179, 297, 391, 394, 460, 420, 180, 68, 429, 321, 42, 151, 428, 339, 61, 33, 200, 150]
Output:
427