Ordinal numbers

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1234567891011121314151617
Across
  1. 2. 2nd
  2. 5. 40th
  3. 6. 15th
  4. 8. 3th
  5. 10. 8th
  6. 11. 13th
  7. 13. 20th
  8. 15. 5th
  9. 16. 7th
  10. 17. 11th
Down
  1. 1. 10th
  2. 3. 4th
  3. 4. 7th
  4. 5. 14th
  5. 6. 50th
  6. 7. 5th
  7. 8. 12th
  8. 9. 30th
  9. 12. 1st
  10. 14. 6th