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: [121, 412, 372, 145, 352, 232, 196, 164, 421, 345, 419, 136, 186, 252, 216, 413, 106, 143, 423, 330]
A: 
317