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 Q]: [102, 268, 105, 118, 419, 57, 271, 365, 186, 342, 156, 131, 223, 471, 227, 317, 185, 424, 360, 478]
[EX A]: 421

[EX Q]: [209, 106, 76, 239, 240, 168, 129, 479, 22, 318, 39, 325, 341, 55, 130, 71, 345, 485, 285, 246]
[EX A]: 463

[EX Q]: [148, 311, 447, 398, 37, 257, 165, 154, 203, 472, 440, 69, 94, 410, 237, 33, 456, 155, 27, 119]
[EX A]:
445