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: [38, 266, 209, 22, 334, 372, 279, 42, 123, 247, 445, 363, 414, 180, 496, 88, 298, 382, 79, 284]
Example Output: 474

Example Input: [379, 166, 33, 28, 246, 461, 332, 95, 67, 80, 270, 279, 55, 31, 70, 173, 305, 35, 92, 223]
Example Output: 433

Example Input: [343, 235, 362, 238, 49, 335, 224, 188, 273, 148, 309, 390, 284, 412, 164, 304, 81, 219, 437, 468]
Example Output:
419