Step 1: Divide the number into separate digits:
8083 => 8 0 8 3
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
8 to 0 = 8
0 to 8 = 8
8 to 3 = 5
3 to 8 = 5
Step 3: Combine the filters to a string:
8 8 5 5 = 8855