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: [203, 115, 420, 204, 221, 56, 60, 310, 149, 472, 306, 211, 246, 494, 314, 95, 407, 449, 468, 269]
A:
438