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:
[360, 186, 279, 178, 204, 101, 354, 103, 232, 30, 87, 303, 405, 305, 265, 443, 472, 313, 205, 169]

Ex Output:
442

Ex Input:
[326, 343, 257, 330, 387, 478, 173, 157, 120, 449, 172, 29, 336, 495, 331, 440, 95, 57, 175, 70]

Ex Output:
466

Ex Input:
[358, 257, 170, 485, 214, 33, 354, 151, 156, 74, 116, 421, 422, 245, 418, 277, 50, 168, 194, 127]

Ex Output:
452