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.

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

Ex Output:
429

Ex Input:
[375, 80, 325, 329, 130, 18, 428, 458, 10, 138, 170, 333, 99, 104, 432, 273, 173, 43, 53, 462]

Ex Output:
452

Ex Input:
[190, 319, 71, 180, 230, 70, 466, 195, 377, 170, 163, 279, 187, 471, 28, 372, 131, 331, 198, 337]

Ex Output:
443