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:
[18, 42, 73, -74, 20, 93, 79, -2, 16]

Ex Output:
2


Ex Input:
[-74, -30, -45, 98, -69]

Ex Output:
5


Ex Input:
[88, 91, 10, -12, -21, 30, -82, -68]

Ex Output:

3