Solution:
The task is to convert German number words into digits.
- dreizehn means thirteen.
- neunzehn means nineteen.
- sechsundzwanzig means twenty-six (literally six and twenty).
- siebenundachtzig means eighty-seven (literally seven and eighty).
- zweihundertdreiundsibzig means two hundred and seventy-three (literally two hundred three and seventy).
- achthundertneununddreißig means eight hundred and thirty-nine (literally eight hundred nine and thirty).
- viertausendzweihunderteinundsechzig means four thousand two hundred and sixty-one (literally four thousand two hundred one and sixty).
Answer: 1. 13, 2. 19, 3. 26, 4. 87, 5. 273, 6. 839, 7. 4261