You will be given a definition of a task first, then some input of the task.
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.

[422, 245, 493, 387, 62, 78, 48, 30, 31, 378, 417, 139, 273, 465, 195, 76, 483, 205, 317, 83]
Output:
463