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]: [394, 96, 237, 138, 129, 418, 198, 18, 420, 465, 375, 33, 216, 59, 245, 276, 387, 144, 378, 431]
[A]: 447

[Q]: [100, 186, 178, 334, 221, 146, 426, 377, 49, 116, 273, 492, 318, 464, 253, 404, 114, 346, 348, 216]
[A]: 443

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