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:
[64, 49, 91, -91, 72, 52]

Ex Output:
3


Ex Input:
[-7, 59, 0]

Ex Output:
7


Ex Input:
[28, 63, 47]

Ex Output:

16