Detailed Instructions: 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.
See one example below:
Problem: [1,2,3,4,5,7,34,25]
Solution: 33
Explanation: maximum element is 34 and minimum element is 1, range is equal to the difference between 34 and 1 which is 33.

Problem: [70, 109, 401, 280, 337, 361, 195, 49, 127, 151, 100, 140, 272, 81, 494, 351, 134, 207, 399, 306]
Solution:
445