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]: [261, 417, 397, 447, 23, 462, 199, 299, 71, 263, 92, 389, 159, 182, 302, 155, 350, 378, 188, 233]
[EX A]: 439

[EX Q]: [471, 130, 251, 75, 238, 301, 215, 65, 69, 217, 122, 203, 15, 279, 149, 368, 478, 225, 67, 403]
[EX A]: 463

[EX Q]: [405, 24, 381, 104, 62, 443, 356, 312, 245, 10, 221, 483, 298, 29, 160, 275, 320, 175, 143, 495]
[EX A]:
485