Step 1: Divide the number into separate digits:
49655 => 4 9 6 5 5
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
4 to 9 = 5
9 to 6 = 3
6 to 5 = 1
5 to 5 = 0
5 to 4 = 1
Step 3: Combine the filters to a string:
5 3 1 0 1 = 53101