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: [12, -29, -31, 91, -52, 49, -18]
Example Output: 2

Example Input: [43, 46, -1, -75, 29]
Example Output: 3

Example Input: [55, -10, -30, -80, 65, -87]
Example Output:
7