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:
[197, 44, 239, 426, 356, 403, 75, 159, 55, 106, 199, 254, 92, 210, 334, 319, 288, 402, 129, 499]

Ex Output:
455


Ex Input:
[230, 334, 215, 305, 378, 394, 67, 241, 362, 231, 434, 269, 272, 124, 366, 214, 330, 228, 125, 421]

Ex Output:
367


Ex Input:
[23, 442, 30, 73, 109, 344, 108, 209, 125, 491, 439, 138, 423, 476, 282, 20, 163, 97, 286, 355]

Ex Output:

471