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:
[422, 245, 493, 387, 62, 78, 48, 30, 31, 378, 417, 139, 273, 465, 195, 76, 483, 205, 317, 83]

Ex Output:
463


Ex Input:
[340, 390, 158, 178, 330, 32, 373, 84, 101, 365, 223, 413, 246, 120, 215, 172, 311, 74, 143, 228]

Ex Output:
381


Ex Input:
[144, 25, 209, 322, 402, 157, 242, 368, 289, 356, 485, 106, 104, 377, 355, 29, 62, 239, 253, 186]

Ex Output:

460