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 Input:
[209, 106, 76, 239, 240, 168, 129, 479, 22, 318, 39, 325, 341, 55, 130, 71, 345, 485, 285, 246]

Ex Output:
463


Ex Input:
[341, 472, 329, 362, 15, 148, 440, 198, 318, 379, 81, 295, 214, 282, 479, 233, 278, 55, 413, 184]

Ex Output:
464


Ex Input:
[154, 425, 267, 492, 204, 337, 255, 79, 426, 101, 103, 230, 265, 80, 473, 340, 396, 394, 92, 69]

Ex Output:

423