-er -ic c-- ccc cce cci ccn ccp ccr cct ce- cec cee cei cen cep cer cet ci- cic cie cii cin cip cir cit cn- cnc cne cni cnn cnp cnr cnt cpc cpe cpi cpn cpp cpr cpt crc cre cri crn crp crr crt ctc cte cti ctn ctp ctr ctt ec- ecc ece eci ecn ecr ect eec eee een eep eer eet eic eie eii ein eip eir eit en- enc ene eni enn enp enr ent ep- epc epe epi epn epp epr ept erc ere eri ern erp err ert etc ete eti etn etp etr ett icc ice ici icn icp icr ict ie- iec iee iei ien iep ier iet iic iie iii iin iip iir iit in- inc ine ini inn inp inr int ipc ipe ipi ipn ipp ipr ipt ir- irc ire iri irn irp irr irt itc ite iti itn itp itt n-i ncc nce nci ncn ncp ncr nct ne- nec nee nei nen nep ner net nic nie nii nin nip nir nit nnc nne nni nnn nnp nnt npc npe npi npn npp npr npt nrc nre nri nrn nrp nrr nrt ntc nte nti ntn ntp ntr ntt p-p pcc pce pci pcn pcp pcr pct pec pee pei pen pep per pet pic pie pii pin pip pir pit pn- pnc pne pni pnn pnp pnr pnt ppc ppe ppi ppn ppp ppr ppt prc pre pri prn prp prr prt pt- ptc pte pti ptn ptp ptr ptt rcc rce rci rcn rcp rcr rct re- rec ree rei ren rep rer ret ric rie rii rin rip rir rit rnc rni rnn rnp rnr rnt rpc rpe rpi rpn rpp rpr rpt rrc rri rrn rrp rrr rrt rtc rte rti rtn rtp rtr rtt tcc tce tci tcn tcp tcr tct te- tec tee tei ten tep ter tet tic tie tii tin tip tir tit tnc tne tni tnn tnp tnr tnt tpc tpe tpi tpn tpp tpr tpt trc tre tri trn trp trr trt ttc tte tti ttn ttp ttr ttt