Step 1: Divide the number into separate digits:
35727 => 3 5 7 2 7
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
3 to 5 = 2
5 to 7 = 2
7 to 2 = 5
2 to 7 = 5
7 to 3 = 4
Step 3: Combine the filters to a string:
2 2 5 5 4 = 22554