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.

[56, -51, 79, 34]
22

[15, 70, -35, -31]
4

[68, 43, 71]

3