ORACLE - "for" statement in PL/SQL

Easy for loop for labels generation:

declare
  i number;
  ...
begin
...
  open c_city( pc1.arb_ord_nr, pc1.arb_ord_zae );
  loop

    fetch c_city into pCity;
    exit when c_city%notfound;

    for i in 1..pCity.quantity loop

      /* -- add one label per city cursor row */

      insert into labels
      ( sessionid, arb_ord_nr, c_number, tl_fam, tl_atn, c_type, dat_neu )
      values
      ( sid, pCity.arb_ord_nr, i, null, null, sType, sysdate );
      
      commit;

    end loop;

  end loop;
  close c_city;