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]: [326, 343, 257, 330, 387, 478, 173, 157, 120, 449, 172, 29, 336, 495, 331, 440, 95, 57, 175, 70]
[EX A]: 466

[EX Q]: [409, 463, 252, 471, 273, 247, 228, 410, 467, 433, 455, 483, 56, 402, 87, 99, 152, 12, 466, 222]
[EX A]: 471

[EX Q]: [405, 24, 381, 104, 62, 443, 356, 312, 245, 10, 221, 483, 298, 29, 160, 275, 320, 175, 143, 495]
[EX A]:
485