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.
One example: [1,2,3,4,5,7,34,25]
Solution is here: 33
Explanation: maximum element is 34 and minimum element is 1, range is equal to the difference between 34 and 1 which is 33.

Now, solve this: [286, 487, 492, 203, 313, 204, 269, 245, 294, 499, 148, 134, 396, 166, 305, 137, 251, 55, 364, 231]
Solution:
444