-er -up ddd dde ddm ddn ddp ddr ddu de- ded dee dem den dep der deu dmd dme dmm dmn dmp dmr dmu dnd dne dnm dnn dnp dnr dpd dpe dpm dpn dpp dpr dpu drd dre drm drn drp drr dru dud due dum dun dup dur ed- edd ede edm edn edp edr edu eed eee eem een eep eer em- emd eme emm emn emp emr emu en- end ene enm enn enp enr enu ep- epd epe epm epn epp epr epu erd ere erm ern erp err eru eu- eud eue eun eup eur m-r mdd mde mdm mdn mdp mdr mdu med mee mem men mep mer meu mmd mme mmm mmn mmp mmr mmu mne mnm mnn mnp mnr mnu mpd mpe mpm mpn mpp mpr mpu mrd mre mrm mrn mrp mrr mru mud mue mum mun mup mur muu ndd nde ndm ndn ndp ndr ndu ne- ned nee nem nen nep ner neu nmd nme nmm nmn nmp nmr nmu nne nnm nnn nnp nnu npd npe npm npn npp npr npu nrd nre nrm nrn nrp nrr nru nud nue num nun nup nur nuu p-p pdd pde pdm pdn pdp pdr pdu ped pee pem pen pep per peu pmd pme pmm pmn pmp pmr pmu pn- pnd pne pnm pnn pnp pnr pnu ppd ppe ppm ppn ppp ppr ppu prd pre prm prn prp prr pru pud pue pum pun pup pur puu rdd rde rdm rdn rdp rdr rdu re- red ree rem ren rep rer reu rmd rme rmm rmn rmp rmr rnd rnm rnn rnp rnr rnu rpd rpe rpm rpn rpp rpr rpu rrd rrm rrn rrp rrr rru rud rue rum run rup rur ruu udd ude udm udn udp udr udu ued uee uem uen uep uer um- umd ume umm umn ump umr umu un- und une unm unn unp unr unu up- upd upe upm upn upp upr upu ur- urd ure urm urn urp urr uru uue uum uun uur uuu