-er -up ddd dde ddl ddn ddp ddr ddu de- ded dee del den dep der deu dl- dld dle dll dlp dlr dlu dnd dne dnl dnn dnp dnr dpd dpe dpl dpn dpp dpr dpu drd dre drl drn drp drr dru dud due dul dun dup dur ed- edd ede edl edn edp edr edu eed eee eel een eep eer eld ele ell eln elp elr elu en- end ene enl enn enp enr enu ep- epd epe epl epn epp epr epu erd ere erl ern erp err eru eu- eud eue eul eun eup eur l-p ldd lde ldl ldn ldp ldr ldu led lee lel len lep ler leu lld lle lll lln llp llr llu lnd lne lnl lnn lnp lnr lnu lpd lpe lpl lpn lpp lpr lpu lrd lrn lrp lrr lru lud lue lul lun lup lur luu ndd nde ndl ndn ndp ndr ndu ne- ned nee nel nen nep ner neu nld nle nll nln nlp nlr nlu nne nnl nnn nnp nnu npd npe npl npn npp npr npu nrd nre nrl nrn nrp nrr nru nud nue nul nun nup nur nuu p-p pdd pde pdl pdn pdp pdr pdu ped pee pel pen pep per peu pld ple pll pln plp plr plu pn- pnd pne pnl pnn pnp pnr pnu ppd ppe ppl ppn ppp ppr ppu prd pre prl prn prp prr pru pud pue pul pun pup pur puu rdd rde rdl rdn rdp rdr rdu re- red ree rel ren rep rer reu rld rle rll rln rlp rlr rlu rnd rnn rnp rnr rnu rpd rpe rpl rpn rpp rpr rpu rrd rrl rrn rrp rrr rru rud rue run rup rur ruu udd ude udl udn udp udr udu ued uee uel uen uep uer uld ule ull uln ulp ulr ulu un- und une unl unn unp unr unu up- upd upe upn upp upr upu ur- urd ure url urn urp urr uru uue uun uur uuu