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: [70, 109, 401, 280, 337, 361, 195, 49, 127, 151, 100, 140, 272, 81, 494, 351, 134, 207, 399, 306]
Example Output: 445

Example Input: [423, 213, 491, 98, 184, 12, 198, 349, 145, 353, 14, 214, 261, 233, 194, 225, 436, 311, 123, 149]
Example Output: 479

Example Input: [137, 17, 311, 292, 13, 135, 242, 16, 206, 183, 192, 77, 461, 124, 430, 50, 225, 230, 392, 354]
Example Output:
448

