TASK DEFINITION: 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.
PROBLEM: [-16, 15, -28]

SOLUTION: 12

PROBLEM: [34, -51, -48, -27]

SOLUTION: 3

PROBLEM: [16, 78, -42, -49, 47, -90]

SOLUTION:
7