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: [317, 319, 328, 99, 216, 494, 141, 62, 36, 486, 422, 177, 120, 131, 114, 314, 301, 74, 331, 490]
Example Output: 458

Example Input: [360, 186, 279, 178, 204, 101, 354, 103, 232, 30, 87, 303, 405, 305, 265, 443, 472, 313, 205, 169]
Example Output: 442

Example Input: [93, 486, 392, 88, 59, 119, 356, 200, 65, 224, 314, 403, 365, 276, 405, 347, 339, 217, 419, 41]
Example Output:
445