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.

Example Input: [37, 45, 56, -63, 84, 75, -92, -59, -31]
Example Output: 4

Example Input: [-28, -99, -62, -33, 92, 41]
Example Output: 5

Example Input: [37, 12, -72, -93]
Example Output:
21