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: [19, 170, 414, 201, 440, 356, 146, 300, 336, 296, 40, 375, 183, 443, 420, 491, 30, 153, 430, 338]
A: 
472