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: [82, 130, 118, 319, 455, 414, 88, 19, 426, 13, 174, 301, 279, 144, 29, 362, 402, 114, 240, 289]
Example Output: 442

Example Input: [31, 263, 460, 60, 418, 311, 246, 178, 103, 241, 168, 445, 28, 113, 192, 340, 470, 36, 283, 104]
Example Output: 442

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