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medium-2005-04-21.su 180 B

123456789101112131415161718
  1. ...9..3..
  2. 3.9.....1
  3. ...15...4
  4. 8....642.
  5. .3..4..7.
  6. .743....9
  7. 6...81...
  8. 9.....2.8
  9. ..2..4...
  10. 415967382
  11. 369428751
  12. 728153694
  13. 891576423
  14. 236849175
  15. 574312869
  16. 653281947
  17. 947635218
  18. 182794536