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: [271, 469, 477, 229, 51, 326, 345, 159, 129, 201, 417, 256, 398, 311, 62, 111, 439, 491, 65, 113]
Example Output: 440

Example Input: [183, 51, 382, 122, 494, 156, 71, 84, 461, 468, 90, 302, 380, 104, 87, 402, 360, 184, 283, 413]
Example Output: 443

Example Input: [176, 338, 87, 230, 97, 472, 487, 348, 79, 178, 360, 258, 226, 304, 383, 382, 336, 62, 216, 439]
Example Output:
425