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:
[38, 266, 209, 22, 334, 372, 279, 42, 123, 247, 445, 363, 414, 180, 496, 88, 298, 382, 79, 284]

Ex Output:
474

Ex Input:
[38, 263, 454, 92, 170, 328, 293, 488, 23, 273, 103, 380, 333, 141, 307, 25, 161, 418, 189, 321]

Ex Output:
465

Ex Input:
[237, 476, 157, 437, 325, 455, 135, 52, 107, 482, 131, 175, 14, 317, 358, 163, 228, 407, 180, 461]

Ex Output:
468