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: [485, 327, 154, 281, 179, 471, 200, 95, 250, 146, 181, 300, 383, 408, 253, 61, 261, 494, 407, 67]
Example Output: 433

Example Input: [361, 149, 461, 317, 457, 157, 11, 422, 71, 272, 69, 25, 469, 410, 443, 207, 421, 289, 141, 491]
Example Output: 480

Example Input: [486, 403, 242, 441, 132, 270, 268, 357, 43, 497, 26, 458, 159, 108, 11, 208, 243, 376, 361, 136]
Example Output:
486

