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.

[10, 38, -12, 97, -60, -48, -29, -21]
8

[-51, 51, -66, -34]
15

[60, -56, -77, 66, -45, -1, -68]

6