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: [-30, 85, -87, 13, 85, -87, 11, 38, -80]

SOLUTION: 0

PROBLEM: [33, 68, 9, 28, 76, 37, -61, 49]

SOLUTION: 4

PROBLEM: [6, 45, 20]

SOLUTION:
14