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: [154, 425, 267, 492, 204, 337, 255, 79, 426, 101, 103, 230, 265, 80, 473, 340, 396, 394, 92, 69]
Example Output: 423

Example Input: [486, 403, 242, 441, 132, 270, 268, 357, 43, 497, 26, 458, 159, 108, 11, 208, 243, 376, 361, 136]
Example Output: 486

Example Input: [195, 88, 399, 111, 266, 288, 365, 106, 36, 390, 259, 356, 351, 394, 41, 187, 455, 68, 391, 343]
Example Output:
419

