-er -ic c-- ccc cce cci ccn ccp ccr cct ccx ce- cec cee cei cen cep cer cet cex ci- cic cie cii cin cip cir cit cix cn- cnc cne cni cnn cnp cnr cnt cnx cpc cpe cpi cpn cpp cpr cpt cpx crc cre cri crn crp crr crt crx ctc cte cti ctn ctp ctr ctt ctx cxc cxi cxp cxr cxt cxx ec- ecc ece eci ecn ecr ect ecx eec eee een eep eer eet eex eic eie eii ein eip eir eit eix en- enc ene eni enn enp enr ent ep- epc epe epi epn epp epr ept epx erc ere eri ern erp err ert etc ete eti etn etp etr ett etx ex- exc exe exi exp exr ext exx icc ice ici icn icp icr ict ie- iec iee iei ien iep ier iet iex iic iie iii iin iip iir iit iix in- inc ine ini inn inp inr int inx ipc ipe ipi ipn ipp ipr ipt ipx ir- irc ire iri irn irp irr irt irx itc ite iti itn itp itt itx ixc ixe ixi ixn n-i ncc nce nci ncn ncp ncr nct ncx ne- nec nee nei nen nep ner net nex nic nie nii nin nip nir nit nix nnc nne nni nnn nnp nnt npc npe npi npn npp npr npt nrc nre nri nrn nrp nrr nrt nrx ntc nte nti ntn ntp ntr ntt ntx nxc nxt p-p pcc pce pci pcn pcp pcr pct pcx pec pee pei pen pep per pet pex pic pie pii pin pip pir pit pix pn- pnc pne pni pnn pnp pnr pnt pnx ppc ppe ppi ppn ppp ppr ppt ppx prc pre pri prn prp prr prt prx pt- ptc pte pti ptn ptp ptr ptt ptx pxc pxe pxr pxt rcc rce rci rcn rcp rcr rct rcx re- rec ree rei ren rep rer ret rex ric rie rii rin rip rir rit rix rnc rni rnn rnp rnr rnt rpc rpe rpi rpn rpp rpr rpt rpx rrc rri rrn rrp rrr rrt rtc rte rti rtn rtp rtr rtt rtx rxp rxr t-x tcc tce tci tcn tcp tcr tct tcx te- tec tee tei ten tep ter tet tex tic tie tii tin tip tir tit tix tnc tne tni tnn tnp tnr tnt tnx tpc tpe tpi tpn tpp tpr tpt tpx trc tre tri trn trp trr trt trx ttc tte tti ttn ttp ttr ttt ttx txe txi txn txt xci xcp xcr xcx xee xen xep xer xet xex xic xie xii xin xit xix xnc xpc xpe xpn xpp xpt xrc xrt xrx xtc xti xtp xtr xtx xxi xxp xxx