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.

[EX Q]: [203, 115, 420, 204, 221, 56, 60, 310, 149, 472, 306, 211, 246, 494, 314, 95, 407, 449, 468, 269]
[EX A]: 438

[EX Q]: [98, 306, 171, 220, 96, 235, 292, 425, 136, 263, 266, 474, 388, 430, 143, 51, 351, 274, 347, 346]
[EX A]: 423

[EX Q]: [170, 227, 153, 349, 20, 32, 324, 33, 19, 208, 185, 240, 57, 46, 332, 109, 296, 146, 180, 454]
[EX A]:
435