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: [31, 93, -57, 50, 3]

SOLUTION: 19

PROBLEM: [-67, -22, -46, 54]

SOLUTION: 21

PROBLEM: [72, -81, -99, 0, -54, 30]

SOLUTION:
18