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.

[-30, -22, 17, 70]
8

[-86, -64, -76, -44, -31, 84, -40]
4

[-89, 13, 31, -10, 56, -47, 20]

7