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, -48, 77, 47, 41, -67, 39, 96, 45]

Ex Output:
2


Ex Input:
[-67, -22, -46, 54]

Ex Output:
21


Ex Input:
[0, 23, -37, 65, 23, 69]

Ex Output:

0