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

Example Input: [14, 387, 138, 100, 359, 277, 422, 325, 326, 428, 111, 476, 247, 159, 424, 322, 55, 478, 66, 152]
Example Output: 464

Example Input: [382, 362, 223, 266, 355, 279, 459, 151, 249, 282, 296, 197, 265, 51, 246, 222, 480, 428, 81, 216]
Example Output:
429