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.

Example Input: [261, 417, 397, 447, 23, 462, 199, 299, 71, 263, 92, 389, 159, 182, 302, 155, 350, 378, 188, 233]
Example Output: 439

Example Input: [488, 40, 41, 87, 226, 492, 71, 342, 267, 448, 90, 141, 146, 113, 64, 97, 394, 493, 414, 265]
Example Output: 453

Example Input: [38, 263, 454, 92, 170, 328, 293, 488, 23, 273, 103, 380, 333, 141, 307, 25, 161, 418, 189, 321]
Example Output:
465