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:
[349, 495, 181, 489, 385, 406, 314, 22, 128, 236, 214, 157, 66, 237, 475, 195, 407, 199, 13, 245]

Ex Output:
482


Ex Input:
[399, 231, 174, 281, 329, 160, 313, 237, 139, 229, 104, 50, 328, 433, 92, 201, 95, 385, 407, 41]

Ex Output:
392


Ex Input:
[498, 252, 402, 153, 179, 454, 103, 316, 468, 287, 445, 356, 275, 19, 262, 68, 303, 16, 45, 349]

Ex Output:

482