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.

[-91, 67, -76, -32, -64, -20, -19, 64, -31]
1

[-72, -18, 90, 8, -37, 61, -16]
2

[61, 43, 76, -63]

15