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.

[15, -53, 68, -20, 68, -33, 79, 34, 15]
0

[-24, 94, -20, -82, 60, 31, -3, -22, -92]
2

[39, -79, -77, 90, -18, 45, -40]

2