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.

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

[-16, -30, -93]
14

[79, 46, -43, 29, 28]

1