TASK DEFINITION: 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.
PROBLEM: [87, 126, 334, 74, 100, 167, 496, 271, 345, 253, 387, 130, 244, 155, 328, 193, 252, 235, 384, 142]

SOLUTION: 422

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

SOLUTION: 471

PROBLEM: [165, 200, 41, 175, 194, 416, 362, 18, 372, 69, 381, 456, 46, 81, 299, 433, 315, 167, 60, 117]

SOLUTION:
438