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: [28, 28, 29, -88, -86, 18]

SOLUTION: 0

PROBLEM: [-74, 23, 40, -41, 0, 99]

SOLUTION: 17

PROBLEM: [90, -98, 4]

SOLUTION:
86