-er -ic -up c-- ccc ccd cce cci cck ccn ccp ccr ccu cdc cdd cde cdi cdk cdn cdp cdr cdu ce- cec ced cee cei cek cen cep cer ceu ci- cic cid cie cii cik cin cip cir ciu ckc ckd cki cn- cnc cnd cne cni cnn cnp cnr cnu cpc cpd cpe cpi cpk cpn cpp cpr cpu crc crd cre cri crk crn crp crr cru cuc cud cue cui cuk cun cup cur cuu dcc dcd dce dci dck dcn dcp dcr dcu ddc ddd dde ddi ddk ddn ddp ddr ddu de- dec ded dee dei dek den dep der deu di- dic did die dii dik din dip dir diu dkc dke dki dkk dkp dkr dku dnc dnd dne dni dnk dnn dnp dnr dpc dpd dpe dpi dpk dpn dpp dpr dpu drc drd dre dri drk drn drp drr dru duc dud due dui duk dun dup dur ec- ecc ecd ece eci eck ecn ecr ecu ed- edc edd ede edi edk edn edp edr edu eec eed eee eek een eep eer eic eid eie eii eik ein eip eir eiu ekc ekd eke eki ekp ekr eku en- enc end ene eni enk enn enp enr enu ep- epc epd epe epi epn epp epr epu erc erd ere eri erk ern erp err eru eu- euc eud eue eui eun eup eur i-d icc icd ice ici ick icn icp icr icu idc idd ide idi idk idn idp idr idu ie- iec ied iee iei iek ien iep ier iic iid iie iii iin iip iir iiu ikc ike iki ikk ikr iku in- inc ind ine ini ink inn inp inr inu ipc ipd ipe ipi ipn ipp ipr ipu ir- irc ird ire iri irk irn irp irr iru iu- iuc iud iue iui iup iur kcc kcd kce kci kck kcn kcp kcr kcu kdc kde kdk kdp kdr kdu ke- kec ked kee kei kek ken kep ker kic kid kie kii kik kin kip kir kiu kkc kke kki kkk kkn kkp kkr kku kn- knc knd kne kni knk knn knp knr knu kpc kpd kpe kpi kpk kpn kpp kpr kpu krc krd kri krk krn krp krr kru kuc kud kue kui kuk kun kup kur kuu n-i ncc ncd nce nci nck ncn ncp ncr ncu ndc ndd nde ndi ndk ndn ndp ndr ndu ne- nec ned nee nei nek nen nep ner neu nic nid nie nii nik nin nip nir niu nkc nke nki nkk nkn nkp nkr nku nnc nne nni nnk nnn nnp nnu npc npd npe npi npn npp npr npu nrc nrd nre nri nrk nrn nrp nrr nru nuc nud nue nui nuk nun nup nur nuu p-p pcc pcd pce pci pck pcn pcp pcr pcu pdc pdd pde pdi pdk pdn pdp pdr pdu pec ped pee pei pek pen pep per peu pic pid pie pii pik pin pip pir piu pkc pkd pke pki pkn pkp pkr pku pn- pnc pnd pne pni pnk pnn pnp pnr pnu ppc ppd ppe ppi ppk ppn ppp ppr ppu prc prd pre pri prk prn prp prr pru puc pud pue pui puk pun pup pur puu rcc rcd rce rci rcn rcp rcr rcu rdc rdd rde rdi rdn rdp rdr rdu re- rec red ree rei rek ren rep rer reu ric rid rie rii rik rin rip rir rkc rke rkk rkp rku rnc rnd rni rnn rnp rnr rnu rpc rpd rpe rpi rpk rpn rpp rpr rpu rrc rrd rri rrk rrn rrp rrr rru ruc rud rue rui ruk run rup rur ruu ucc ucd uce uci uck ucn ucp ucr ucu udc udd ude udi udk udn udp udr udu uec ued uee uei uen uep uer uic uid uie uii uin uip uir uiu ukc uke uki ukk ukn ukp ukr uku un- unc und une uni unk unn unp unr unu up- upc upd upe upi upk upn upp upr upu ur- urc urd ure uri urk urn urp urr uru uuc uue uun uur uuu