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: [-16, 15, -28]

SOLUTION: 12

PROBLEM: [-5, -44, 81, -31, 87, 45]

SOLUTION: 6

PROBLEM: [-55, 21, 76]

SOLUTION:
55