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.

Q: [12, -29, -31, 91, -52, 49, -18]

A: 2
****
Q: [15, 70, -35, -31]

A: 4
****
Q: [-38, -54, 14, 18]

A:
4
****