Place values like "hundred" and "thousand"

Handle edge cases:

Iterate through the string from left to right:

If more than two digits remain, print the single digit and its place value.
When only two digits remain:
- If the first is 1, handle as a "teen" number using twodigits mapping.
- Else, print the tens multiple and (if needed) the single digit.

Stop once the entire string is processed.

Code

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657<