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: [10, 38, -12, 97, -60, -48, -29, -21]
Example Output: 8

Example Input: [1, -47, -34, 23, -62, 68]
Example Output: 13

Example Input: [-47, 3, -97, 78, 43, -29]
Example Output:
18