-er ddd dde ddf ddk ddo ddr de- ded dee def dej dek deo der dfd dfe dff dfj dfk dfo dfr dj- djd dje djf djk djo dke dkk dko dkr dod doe dof doj dok doo dor drd dre drj drk dro drr ed- edd ede edf edj edk edo edr eed eee eef eek eeo eer ef- efd efe eff efo efr ejd ejf ejo ekd eke ekf eko ekr eo- eod eoe eof eok eoo eor erd ere erf erk ero err fdd fde fdf fdj fdk fdo fdr fed fee fef fek feo fer ffd ffe fff ffk ffo ffr fjd fkf fkj fkk foe fof fok foo for frd fre frf frj frk fro frr j-d jde jdf jdo jdr jed jee jef jej jek jeo jer jfd jfe jff jfj jfk jfo jfr jjf jjj jjk jjr jkk jko jkr jod joe jof joj jok joo jor jrf jrk jro jrr kde kdf kdk kdo kdr ke- ked kee kef kek keo ker kfd kff kfo kje kjr kke kkk kkr kod koe kof kok koo kor krd krf krk kro krr odd ode odf odo odr oed oee oef oeo oer of- ofd ofe off ofo ofr ojd oje ojo okd oke okj okk oko okr oo- ood oof ook ooo oor or- ord ore orf ork oro orr rdd rde rdf rdj rdo rdr re- red ree ref rek reo rer rfd rfe rff rfj rfk rfo rfr rjf rjk rjr rke rkf rkk rko rod roe rof roj rok roo ror rrd rrf rrk rrr