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]: [467, 287, 271, 138, 423, 79, 443, 462, 407, 368, 344, 204, 114, 109, 495, 11, 179, 132, 475, 135]
[EX A]: 484

[EX Q]: [468, 47, 379, 239, 487, 129, 150, 25, 294, 76, 29, 385, 214, 290, 422, 252, 355, 435, 114, 480]
[EX A]: 462

[EX Q]: [87, 126, 334, 74, 100, 167, 496, 271, 345, 253, 387, 130, 244, 155, 328, 193, 252, 235, 384, 142]
[EX A]:
422