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.

Ex Input:
[-97, -62, 67, -15, 62, 38, -35, -54, -71]

Ex Output:
5


Ex Input:
[-71, -91, -19, 58]

Ex Output:
20


Ex Input:
[-99, -56, 47, 43]

Ex Output:

4