Definition: 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.
Input: [279, 232, 368, 498, 109, 256, 237, 489, 381, 299, 440, 225, 182, 307, 58, 39, 173, 228, 485, 212]
Output:
459