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.
Q: [201, 413, 361, 111, 411, 416, 101, 478, 73, 128, 281, 56, 239, 33, 130, 64, 206, 288, 301, 138]
A: 
445