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:
[12, 95, 55, -63, 14, -7, 31, 39, -31]

Ex Output:
2


Ex Input:
[23, 43, 38, 53, 93]

Ex Output:
5


Ex Input:
[67, 47, 63, 41, -67, -67, -61]

Ex Output:

0