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.

Q: [-49, -16, -68, 11, 87]

A: 19
****
Q: [-16, 15, -28]

A: 12
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Q: [56, 94, 70, -69, -53, 20, -21]

A:
14
****