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: [195, 88, 399, 111, 266, 288, 365, 106, 36, 390, 259, 356, 351, 394, 41, 187, 455, 68, 391, 343]
Solution:
419