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:
[-16, 15, -28]

Ex Output:
12


Ex Input:
[-14, 9, -15, -29, 30, -19]

Ex Output:
1


Ex Input:
[42, 24, 48, -40, 63, -1, -81, -16, -40]

Ex Output:

0