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:
[-11, 20, -57, -39]

Ex Output:
18


Ex Input:
[-10, -45, 9, 26, 4, 42, -54, -6, -63]

Ex Output:
4


Ex Input:
[39, -31, 2, -87]

Ex Output:

33