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.

[85, 69, 90, 51]
5

[8, 55, -84, -50, 7, 80, 57, -36]
1

[-67, 70, 20]

50