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]: [387, 130, 179, 297, 391, 394, 460, 420, 180, 68, 429, 321, 42, 151, 428, 339, 61, 33, 200, 150]
[EX A]: 427

[EX Q]: [197, 44, 239, 426, 356, 403, 75, 159, 55, 106, 199, 254, 92, 210, 334, 319, 288, 402, 129, 499]
[EX A]: 455

[EX Q]: [281, 373, 145, 280, 368, 379, 99, 171, 484, 64, 499, 357, 455, 353, 199, 112, 491, 356, 314, 447]
[EX A]:
435