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:
[136, 71, 264, 213, 168, 416, 435, 215, 465, 114, 325, 93, 306, 212, 183, 455, 123, 274, 87, 412]

Ex Output:
394


Ex Input:
[312, 354, 273, 324, 296, 391, 328, 443, 152, 303, 385, 119, 140, 157, 491, 52, 473, 186, 284, 377]

Ex Output:
439


Ex Input:
[226, 81, 109, 36, 451, 176, 158, 104, 219, 223, 488, 216, 278, 463, 472, 396, 224, 165, 127, 210]

Ex Output:

452