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.

[Q]: [77, 139, 400, 409, 85, 354, 277, 334, 389, 415, 388, 193, 207, 398, 38, 127, 469, 44, 135, 179]
[A]: 431

[Q]: [390, 297, 253, 424, 278, 21, 412, 238, 69, 435, 437, 87, 118, 201, 366, 345, 46, 151, 351, 71]
[A]: 416

[Q]: [41, 286, 416, 82, 92, 155, 192, 367, 15, 378, 291, 394, 107, 197, 499, 277, 221, 152, 371, 320]
[A]:
484