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:
[61, 57, 15, 75, -60]

Ex Output:
4


Ex Input:
[28, 28, 29, -88, -86, 18]

Ex Output:
0


Ex Input:
[71, -43, 74]

Ex Output:

3