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:
[-20, -69, -29, -13]

Ex Output:
7


Ex Input:
[78, -91, 89, -36, -23, 29, -3, 92, -95]

Ex Output:
3


Ex Input:
[90, 72, -10]

Ex Output:

18