www.mikescher.com/www/statics/euler/euler_017_explanation.md

There are only N kinds of numbers:

• 0 - 20: Get the length from a precomputed list
• 20 - 99: Get the length of the first word from a precomputed list and the length of the second word (second digit) from the previous point
• 100 - 999: Get the length of the first word from a precomputed list and the length of the second and third word (second digit) from the previous point
• 1000: Get the hard coded value

Note: Interestingly this program operates completely on the stack - only the initializing method sets a few "constant fields" to per-definied values