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: 818 => 8 1 8 Step 2: Calculate the distance between each digit and the next (the last digit with the first): 8 to 1 = 7 1 to 8 = 7 8 to 8 = 0 Step 3: Combine the filters to a string: 7 7 0 = 770