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.

Ex Input:
[201, 413, 361, 111, 411, 416, 101, 478, 73, 128, 281, 56, 239, 33, 130, 64, 206, 288, 301, 138]

Ex Output:
445


Ex Input:
[403, 279, 182, 232, 337, 41, 138, 193, 436, 233, 388, 152, 91, 61, 463, 117, 413, 483, 450, 24]

Ex Output:
459


Ex Input:
[77, 139, 400, 409, 85, 354, 277, 334, 389, 415, 388, 193, 207, 398, 38, 127, 469, 44, 135, 179]

Ex Output:

431