-er -up c-- ccc ccd cce cck ccn ccp ccr ccu cdc cdd cde cdk cdn cdp cdr cdu ce- cec ced cee cek cen cep cer ceu ckc ckd cn- cnc cnd cne cnn cnp cnr cnu cpc cpd cpe cpk cpn cpp cpr cpu crc crd cre crk crn crp crr cru cuc cud cue cuk cun cup cur cuu dcc dcd dce dck dcn dcp dcr dcu ddc ddd dde ddk ddn ddp ddr ddu de- dec ded dee dek den dep der deu dkc dke dkk dkp dkr dku dnc dnd dne dnk dnn dnp dnr dpc dpd dpe dpk dpn dpp dpr dpu drc drd dre drk drn drp drr dru duc dud due duk dun dup dur ec- ecc ecd ece eck ecn ecr ecu ed- edc edd ede edk edn edp edr edu eec eed eee eek een eep eer ekc ekd eke ekp ekr eku en- enc end ene enk enn enp enr enu ep- epc epd epe epn epp epr epu erc erd ere erk ern erp err eru eu- euc eud eue eun eup eur kcc kcd kce kck kcn kcp kcr kcu kdc kde kdk kdp kdr kdu ke- kec ked kee kek ken kep ker kkc kke kkk kkn kkp kkr kku kn- knc knd kne knk knn knp knr knu kpc kpd kpe kpk kpn kpp kpr kpu krc krd krk krn krp krr kru kuc kud kue kuk kun kup kur kuu ncc ncd nce nck ncn ncp ncr ncu ndc ndd nde ndk ndn ndp ndr ndu ne- nec ned nee nek nen nep ner neu nkc nke nkk nkn nkp nkr nku nnc nne nnk nnn nnp nnu npc npd npe npn npp npr npu nrc nrd nre nrk nrn nrp nrr nru nuc nud nue nuk nun nup nur nuu p-p pcc pcd pce pck pcn pcp pcr pcu pdc pdd pde pdk pdn pdp pdr pdu pec ped pee pek pen pep per peu pkc pkd pke pkn pkp pkr pku pn- pnc pnd pne pnk pnn pnp pnr pnu ppc ppd ppe ppk ppn ppp ppr ppu prc prd pre prk prn prp prr pru puc pud pue puk pun pup pur puu rcc rcd rce rcn rcp rcr rcu rdc rdd rde rdn rdp rdr rdu re- rec red ree rek ren rep rer reu rkc rke rkk rkp rku rnc rnd rnn rnp rnr rnu rpc rpd rpe rpk rpn rpp rpr rpu rrc rrd rrk rrn rrp rrr rru ruc rud rue ruk run rup rur ruu ucc ucd uce uck ucn ucp ucr ucu udc udd ude udk udn udp udr udu uec ued uee uen uep uer ukc uke ukk ukn ukp ukr uku un- unc und une unk unn unp unr unu up- upc upd upe upk upn upp upr upu ur- urc urd ure urk urn urp urr uru uuc uue uun uur uuu