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: [384, 352, 257, 43, 338, 390, 410, 25, 402, 266, 244, 182, 161, 396, 315, 285, 113, 387, 42, 135]
A: 
385