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: [97, -58, 12, 63, 19, 71, -31, 36, -72]
Example Output: 7

Example Input: [9, 71, -53, 5]
Example Output: 4

Example Input: [69, -69, -44, 62]
Example Output:
7