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: [308, 310, 137, 185, 362, 450, 263, 236, 294, 429, 435, 457, 316, 128, 337, 121, 331, 356, 381, 360]
Example Output: 336

Example Input: [319, 78, 368, 417, 317, 116, 92, 294, 214, 306, 469, 106, 347, 162, 311, 217, 144, 221, 416, 446]
Example Output: 391

Example Input: [206, 395, 324, 418, 272, 51, 359, 145, 319, 119, 326, 49, 351, 425, 143, 215, 248, 12, 69, 385]
Example Output:
413