ln --symbolic ../../bysemester/f11/ai.pdf  ../../byexam/ai/f11.pdf
  ln --symbolic ../../bysemester/f11/ca.pdf  ../../byexam/ca/f11.pdf
# ln --symbolic ../../bysemester/f11/db.pdf  ../../byexam/db/f11.pdf
  ln --symbolic ../../bysemester/f11/gr.pdf  ../../byexam/gr/f11.pdf
  ln --symbolic ../../bysemester/f11/fc.pdf  ../../byexam/fc/f11.pdf
  ln --symbolic ../../bysemester/f11/hci.pdf  ../../byexam/hci/f11.pdf
  ln --symbolic ../../bysemester/f11/mp.pdf  ../../byexam/mp/f11.pdf
# ln --symbolic ../../bysemester/f11/na.pdf  ../../byexam/na/f11.pdf
  ln --symbolic ../../bysemester/f11/os.pdf  ../../byexam/os/f11.pdf
# ln --symbolic ../../bysemester/f11/pl.pdf   ../../byexam/pl/f11.pdf
  ln --symbolic ../../bysemester/f11/net.pdf   ../../byexam/net/f11.pdf