TASK DEFINITION: In this task you will be given a list of integers. You should find the minimum absolute difference between 2 integers in the list. The absolute difference is the absolute value of one integer subtracted by another. The output should be a single integer which is the smallest possible absolute distance.
PROBLEM: [-57, 89, -34, 73, 21, 33]

SOLUTION: 12

PROBLEM: [-86, -64, -76, -44, -31, 84, -40]

SOLUTION: 4

PROBLEM: [-87, -24, 78, 60]

SOLUTION:
18