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:
[15, -53, 68, -20, 68, -33, 79, 34, 15]

Ex Output:
0


Ex Input:
[-97, 42, -47, 98, -67, 10, 42, -75, 90]

Ex Output:
0


Ex Input:
[-21, 26, 22, 49, -94, -58]

Ex Output:

4