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:
[9, 71, -53, 5]

Ex Output:
4


Ex Input:
[-77, 25, -64, -71]

Ex Output:
6


Ex Input:
[-62, 49, 2, 97]

Ex Output:

47