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: [-21, 93, 99, -36, -87]
Example Output: 6

Example Input: [-12, 31, 18, 18, -42, -55]
Example Output: 0

Example Input: [16, -23, -44]
Example Output:
21