-er -ic -up c-- ccc cce cci ccn ccp ccr ccu ce- cec cee cei cen cep cer ceu ci- cic cie cii cin cip cir ciu cn- cnc cne cni cnn cnp cnr cnu cpc cpe cpi cpn cpp cpr cpu crc cre cri crn crp crr cru cuc cue cui cun cup cur cuu ec- ecc ece eci ecn ecr ecu eec eee een eep eer eic eie eii ein eip eir eiu en- enc ene eni enn enp enr enu ep- epc epe epi epn epp epr epu erc ere eri ern erp err eru eu- euc eue eui eun eup eur icc ice ici icn icp icr icu ie- iec iee iei ien iep ier iic iie iii iin iip iir iiu in- inc ine ini inn inp inr inu ipc ipe ipi ipn ipp ipr ipu ir- irc ire iri irn irp irr iru iu- iuc iue iui iup iur n-i ncc nce nci ncn ncp ncr ncu ne- nec nee nei nen nep ner neu nic nie nii nin nip nir niu nnc nne nni nnn nnp nnu npc npe npi npn npp npr npu nrc nre nri nrn nrp nrr nru nuc nue nui nun nup nur nuu p-p pcc pce pci pcn pcp pcr pcu pec pee pei pen pep per peu pic pie pii pin pip pir piu pn- pnc pne pni pnn pnp pnr pnu ppc ppe ppi ppn ppp ppr ppu prc pre pri prn prp prr pru puc pue pui pun pup pur puu rcc rce rci rcn rcp rcr rcu re- rec ree rei ren rep rer reu ric rie rii rin rip rir rnc rni rnn rnp rnr rnu rpc rpe rpi rpn rpp rpr rpu rrc rri rrn rrp rrr rru ruc rue rui run rup rur ruu ucc uce uci ucn ucp ucr ucu uec uee uei uen uep uer uic uie uii uin uip uir uiu un- unc une uni unn unp unr unu up- upc upe upi upn upp upr upu ur- urc ure uri urn urp urr uru uuc uue uun uur uuu