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:
[1, -72, 66, -75, 52, -40]

Ex Output:
3


Ex Input:
[83, 55, 61]

Ex Output:
6


Ex Input:
[18, 25, -87, -10, 37, 76, 7]

Ex Output:

7