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.
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Question: [20, 43, 2, -55]

Answer: 18


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

Answer: 19


Question: [-99, -88, 67, 98, 0, 66, 68, 42]

Answer:
1