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.

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

[252, 475, 445, 300, 124, 55, 432, 249, 190, 45, 144, 15, 463, 426, 239, 407, 339, 195, 133, 79]
460

[100, 186, 178, 334, 221, 146, 426, 377, 49, 116, 273, 492, 318, 464, 253, 404, 114, 346, 348, 216]
443