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:
[343, 235, 362, 238, 49, 335, 224, 188, 273, 148, 309, 390, 284, 412, 164, 304, 81, 219, 437, 468]

Ex Output:
419

Ex Input:
[423, 213, 491, 98, 184, 12, 198, 349, 145, 353, 14, 214, 261, 233, 194, 225, 436, 311, 123, 149]

Ex Output:
479

Ex Input:
[361, 224, 198, 74, 147, 325, 59, 18, 240, 496, 383, 321, 441, 291, 328, 64, 424, 105, 448, 226]

Ex Output:
478