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:
[100, 186, 178, 334, 221, 146, 426, 377, 49, 116, 273, 492, 318, 464, 253, 404, 114, 346, 348, 216]

Ex Output:
443


Ex Input:
[467, 287, 271, 138, 423, 79, 443, 462, 407, 368, 344, 204, 114, 109, 495, 11, 179, 132, 475, 135]

Ex Output:
484


Ex Input:
[12, 472, 19, 31, 230, 149, 161, 407, 417, 360, 99, 77, 214, 405, 425, 196, 42, 273, 210, 345]

Ex Output:

460


