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.
Q: [104, 333, 387, 71, 369, 84, 438, 68, 15, 29, 386, 281, 420, 437, 103, 72, 220, 301, 170, 165]
A:
423