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:
[-45, 50, 29, 33, 37, -81, -85]

Ex Output:
4


Ex Input:
[-43, -67, -100, 28]

Ex Output:
24


Ex Input:
[-85, 55, 15, -70, 76]

Ex Output:

15