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.

[36, 51, 77, -2]
15

[-20, -43, -74, -82]
8

[-81, 99, 72, -11, 51, -27, 57, 69, 12]

3