-er ddd dde ddf ddi ddk ddl ddr de- ded dee def dei dek del der dfd dfe dff dfi dfk dfl dfr di- did die dif dii dik dil dir dke dki dkk dkl dkr dl- dld dle dlf dli dlk dll dlr drd dre dri drk drl drr ed- edd ede edf edi edk edl edr eed eee eef eek eel eer ef- efd efe eff efi efl efr eid eie eif eii eik eil eir ekd eke ekf eki ekl ekr eld ele elf eli elk ell elr erd ere erf eri erk erl err fdd fde fdf fdi fdk fdl fdr fed fee fef fei fek fel fer ffd ffe fff ffi ffk ffl ffr fid fie fif fii fik fil fir fkf fki fkk fkl fld fle flf fli fll flr frd fre frf fri frk frl frr i-d i-f idd ide idf idi idk idl idr ie- ied iee ief iei iek iel ier ifd ife iff ifi ifl ifr iid iie iif iii iil iir ike ikf iki ikk ikl ikr il- ild ile ilf ili ilk ill ilr ir- ird ire irf iri irk irl irr kde kdf kdk kdl kdr ke- ked kee kef kei kek kel ker kfd kff kfi kid kie kif kii kik kil kir kke kki kkk kkl kkr kl- kld klf kli klr krd krf kri krk krl krr ldd lde ldf ldi ldk ldl ldr led lee lef lei lek lel ler lfd lfe lff lfi lfk lfl lfr lid lie lif lii lik lil lir lkl lkr lld lle llf lli llk lll llr lrd lrf lri lrk lrr rdd rde rdf rdi rdl rdr re- red ree ref rei rek rel rer rfd rfe rff rfi rfk rfl rfr rid rie rif rii rik ril rir rke rkf rkk rld rle rlf rli rll rlr rrd rrf rri rrk rrl rrr