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]: [326, 343, 257, 330, 387, 478, 173, 157, 120, 449, 172, 29, 336, 495, 331, 440, 95, 57, 175, 70]
[EX A]: 466

[EX Q]: [255, 356, 96, 399, 326, 62, 432, 365, 253, 188, 86, 262, 421, 499, 481, 345, 155, 110, 171, 107]
[EX A]: 437

[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

