-er -up c-- ccc ccd cce cck cco ccp ccr ccu cdc cdd cde cdk cdo cdp cdr cdu ce- cec ced cee cek ceo cep cer ceu ckc ckd cko co- coc cod coe cok coo cop cor cou cpc cpd cpe cpk cpo cpp cpr cpu crc crd cre crk cro crp crr cru cuc cud cue cuk cuo cup cur cuu dcc dcd dce dck dco dcp dcr dcu ddc ddd dde ddk ddo ddp ddr ddu de- dec ded dee dek deo dep der deu dkc dke dkk dko dkp dkr dku doc dod doe dok doo dop dor dou dpc dpd dpe dpk dpo dpp dpr dpu drc drd dre drk dro drp drr dru duc dud due duk duo dup dur ec- ecc ecd ece eck eco ecr ecu ed- edc edd ede edk edo edp edr edu eec eed eee eek eeo eep eer ekc ekd eke eko ekp ekr eku eo- eoc eod eoe eok eoo eop eor eou ep- epc epd epe epo epp epr epu erc erd ere erk ero erp err eru eu- euc eud eue eup eur kcc kcd kce kck kcp kcr kcu kdc kde kdk kdo kdp kdr kdu ke- kec ked kee kek keo kep ker kkc kke kkk kkp kkr kku koc kod koe kok koo kop kor kou kpc kpd kpe kpk kpo kpp kpr kpu krc krd krk kro krp krr kru kuc kud kue kuk kup kur kuu oc- occ ocd ock oco ocp ocr ocu odc odd ode odo odp odr odu oec oed oee oeo oep oer okc okd oke okk oko okp okr oku oo- ooc ood ook ooo oop oor op- opc opd ope opk opo opp opr or- orc ord ore ork oro orp orr oru ou- ouc oud oue ouk ouo oup our p-p pcc pcd pce pck pco pcp pcr pcu pdc pdd pde pdk pdo pdp pdr pdu pec ped pee pek peo pep per peu pkc pkd pke pko pkp pkr pku poc pod poe pok poo pop por pou ppc ppd ppe ppk ppo ppp ppr ppu prc prd pre prk pro prp prr pru puc pud pue puk pup pur puu rcc rcd rce rco rcp rcr rcu rdc rdd rde rdo rdp rdr rdu re- rec red ree rek reo rep rer reu rkc rke rkk rko rkp rku roc rod roe rok roo rop ror rou rpc rpd rpe rpk rpo rpp rpr rpu rrc rrd rrk rrp rrr rru ruc rud rue ruk ruo rup rur ruu ucc ucd uce uck uco ucp ucr ucu udc udd ude udk udo udp udr udu uec ued uee uep uer ukc uke ukk ukp ukr uku uoc uod uoe uok uoo uop uor up- upc upd upe upk upo upp upr upu ur- urc urd ure urk uro urp urr uru uuc uue uur uuu

c-cd cccc cccp cccu ccdc ccdp ccdr cced ccee ccoc ccod ccpe ccpp ccpr ccrc ccre ccrp ccuc ccup cd-e cd-r cddr cdec cder cdre cec- cece ceco cecp cedd cede cedo cedu ceec ceke ceop ceor ceou cepc cepe cepo cepp cepr cer- cerc cerd cere cero cerp ckck ckco ckdo ckdu cker ckoc ckoo ckor ckpc ckpr ckrc ckrd coce cock coco cocp cocu codd code coed coep cok- coke coko cood cook coop copd cope copo copp copr cor- corc cord core cork coro corp corr coud coue couk coup cour cpce cpcu cpep cper cppd cpre crcc crce crcr crdc cre- crec cred cree creo crep creu crkc crkp croc crod croe crok croo crop cror crpc crud crue cruk crup cucc cuce cuck cude cued cuek cuer cuk- cuke cupe cupo cupp cupr curd cure curo curr dccc dccp dccu dcop dcpo dcrk dcup dddd ddoc ddpo ddrc ddre dec- decc decd dece deck deco dedd dede dedo dedu deed deek deep deer dek- deke deop deor depc depe depo depp depr der- derc dere derk dero derp derr deue deuk deur dkdc doce dock doco docu dod- dodd dode dodo doek doer doke doko dood dook doop door dope dopo dopp dopr dorc dord dore dork doro dorp dorr doru douc doud doue douk doup dour dpcp dper dppc dprk dred dree drek drod drop drou drue druk drup druu duce duck duco dudd dude dudo dudu duer duke duku duo- dupe dupo dure durk duro duru duur eccc ecce ecco ecdc eced ecko eco- ecod ecop ecou ecpd ecpp ecrc ecrr ecru eddc edde eddo eddp ede- eder edoc edod edou edru educ edup edur eede eedu eeee eeke eeoc eerc eero ekco eked ekek eker ekpe ekpo ekur eocd eode eore epcc epec epee eper epoc epod epor eppc eppo eppp epro eprp ercc erce ercp erde erec ered erer erke eroc erod eroe eroo erpe errc erre erro eruc erur eucd eude euer eur- eurc eure euro kccc kccd kcck kccr kccu kcdc kcdd kcdr kcdu kcec kced kcee kceo kcep kceu kckc kckk kcko kckr kcoe kcor kcou kcpc kcpo kcpr kcpu kcrc kcro kcrp kcrr kcru kcue kcuk kcup kdcc kdcd kdce kdco kdcr kddc kddd kddk kddr kdec kdep kdkd kdkk kdko kdkr kdoc kdoe kdok kdpr kdro kduc kdup kdur keck keco kecr kedc kedd kede kedo kedp kedr keed keek keep keer kekc keke keko keku keok kep- kepc kepd kepe kepu ker- kerc kere kerk kero kerp kerr keru keup keur kkcd kkck kkco kkcr kkdc kkdd kkdo kked kkkk kkoo kkor kkpc kkpk kkrc kkre kkrk kkro kkrr kkup kkuu kocd kock kocp kode kodk kodo kodu koed kokc koke kokk koko kokp kokr koku kooc kook kooo koop koor koou kope kopp kopr kopu korc kord kore kork koro korr koru koue kour kouu kpcc kpcr kpdc kpdo kpdr kpek kper kpke kpkk kpkr kpoc kpod kpoe kpok kpoo kpop kpou kppc kppd kppk kppo kppp kppr kprc kprd kpre kprk kpro kprp kprr kpru kpur krcc