Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following example:
[1,2,3,4,5,7,34,25]
Solution: 33
Reason: 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 instance: [471, 130, 251, 75, 238, 301, 215, 65, 69, 217, 122, 203, 15, 279, 149, 368, 478, 225, 67, 403]
Student:
463