To show you how to calculate the Distances filter for a Pick 3 number here a step by step example.
Step 1: Divide the number into separate digits: 158 => 1 5 8 Step 2: Calculate the distance between each digit and the next (the last digit with the first): 1 to 5 = 4 5 to 8 = 3 8 to 1 = 7 Step 3: Combine the filters to a string: 4 3 7 = 437