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:
[-84, 71, 54]

Ex Output:
17


Ex Input:
[-69, 25, 71, 33, -93, 39]

Ex Output:
6


Ex Input:
[20, 32, 78, 18]

Ex Output:

2