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:
[85, 69, 90, 51]

Ex Output:
5


Ex Input:
[59, -34, -63]

Ex Output:
29


Ex Input:
[13, -73, -9, -95, -15]

Ex Output:

6