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.

Example Input: [117, 405, 408, 138, 454, 451, 319, 89, 99, 444, 154, 106, 88, 221, 322, 259, 149, 439, 368, 26]
Example Output: 428

Example Input: [358, 257, 170, 485, 214, 33, 354, 151, 156, 74, 116, 421, 422, 245, 418, 277, 50, 168, 194, 127]
Example Output: 452

Example Input: [393, 337, 375, 330, 344, 82, 499, 100, 99, 392, 248, 125, 371, 33, 86, 372, 426, 199, 425, 255]
Example Output:
466