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 Input:
[400, 268, 494, 256, 335, 438, 63, 89, 254, 464, 79, 157, 49, 481, 289, 111, 313, 217, 239, 308]

Ex Output:
445


Ex Input:
[262, 339, 24, 335, 143, 480, 476, 107, 55, 469, 151, 64, 186, 448, 255, 234, 458, 218, 54, 129]

Ex Output:
456


Ex Input:
[312, 327, 250, 149, 99, 482, 446, 317, 95, 372, 325, 367, 356, 437, 195, 48, 72, 463, 278, 363]

Ex Output:

434