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 Q]: [340, 480, 122, 311, 195, 267, 155, 326, 16, 389, 126, 241, 39, 174, 319, 451, 268, 482, 416, 397]
[EX A]: 466

[EX Q]: [239, 337, 46, 411, 105, 146, 256, 320, 399, 111, 301, 80, 174, 17, 124, 188, 162, 16, 157, 339]
[EX A]: 395

[EX Q]: [170, 227, 153, 349, 20, 32, 324, 33, 19, 208, 185, 240, 57, 46, 332, 109, 296, 146, 180, 454]
[EX A]:
435

