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: [298, 183, 306, 107, 415, 116, 113, 206, 334, 22, 474, 485, 106, 260, 288, 144, 328, 333, 318, 393]
A: 
463