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: 911 => 9 1 1 Step 2: Calculate the distance between each digit and the next (the last digit with the first): 9 to 1 = 8 1 to 1 = 0 1 to 9 = 8 Step 3: Combine the filters to a string: 8 0 8 = 808