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:
[-27, 3, 76, 4, 17, -17, -19, -52, -62, -20]

Ex Output:
1


Ex Input:
[-72, -74, -52, -34]

Ex Output:
2


Ex Input:
[51, 47, 12, -82]

Ex Output:

4