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, -78, -45, 29, 15]

Ex Output:
0


Ex Input:
[45, -11, 81, -75, 42, -33, -43, 19, -4]

Ex Output:
3


Ex Input:
[21, -75, -64, -12, -19, 15, 62]

Ex Output:

6