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:
[-72, -19, 44, -64, 16]

Ex Output:
8


Ex Input:
[63, 25, -47, 5]

Ex Output:
20


Ex Input:
[85, 69, 90, 51]

Ex Output:

5