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:
[212, 172, 67, 301, 134, 179, 233, 273, 351, 410, 431, 299, 247, 178, 357, 345, 304, 288, 455, 155]

Ex Output:
388


Ex Input:
[367, 449, 79, 374, 26, 423, 287, 185, 418, 359, 265, 246, 92, 60, 30, 305, 285, 98, 421, 39]

Ex Output:
423


Ex Input:
[222, 112, 48, 156, 440, 59, 107, 104, 320, 111, 268, 158, 368, 425, 163, 214, 495, 237, 270, 144]

Ex Output:

447