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: [265, 377, 171, 447, 370, 12, 37, 24, 199, 327, 126, 138, 229, 363, 22, 378, 16, 223, 253, 252]
Example Output: 435

Example Input: [40, 208, 12, 109, 408, 270, 344, 281, 153, 453, 166, 266, 157, 433, 68, 17, 201, 234, 169, 42]
Example Output:
441