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]: [98, 437, 372, 383, 178, 20, 104, 282, 274, 24, 165, 269, 231, 291, 289, 100, 336, 326, 130, 156]
[EX A]: 417

[EX Q]: [400, 268, 494, 256, 335, 438, 63, 89, 254, 464, 79, 157, 49, 481, 289, 111, 313, 217, 239, 308]
[EX A]: 445

[EX Q]: [286, 487, 492, 203, 313, 204, 269, 245, 294, 499, 148, 134, 396, 166, 305, 137, 251, 55, 364, 231]
[EX A]:
444

