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: [136, 71, 264, 213, 168, 416, 435, 215, 465, 114, 325, 93, 306, 212, 183, 455, 123, 274, 87, 412]
Example Output: 394

Example Input: [429, 371, 119, 256, 460, 463, 11, 431, 333, 258, 113, 284, 132, 236, 44, 111, 83, 464, 257, 380]
Example Output: 453

Example Input: [226, 81, 109, 36, 451, 176, 158, 104, 219, 223, 488, 216, 278, 463, 472, 396, 224, 165, 127, 210]
Example Output:
452

