-er -ic c-- ccc cce ccg cci ccm ccn ccr ccs ccx ce- cec cee ceg cei cem cen cer ces cex cgc cge cgg cgi cgm cgn cgr cgs ci- cic cie cig cii cim cin cir cis cix cmc cme cmg cmi cmm cmn cmr cms cmx cn- cnc cne cng cni cnm cnn cnr cns cnx crc cre crg cri crm crn crr crs crx csc cse csg csi csm csn csr css csx cxc cxi cxr cxs cxx ec- ecc ece ecg eci ecm ecn ecr ecs ecx eec eee eeg eem een eer ees eex egc ege egg egi egm egn egr egs egx eic eie eig eii eim ein eir eis eix em- emc eme emg emi emm emn emr ems emx en- enc ene eng eni enm enn enr ens erc ere erg eri erm ern err ers es- esc ese esg esi esm esn esr ess esx ex- exc exe exi exr exs exx gcc gce gcg gci gcm gcn gcr gcs ge- gec gee geg gei gem gen ger ges gex ggc ggg ggi ggm ggn ggr ggs gic gie gig gii gim gin gir gis gmc gme gmg gmi gmm gmn gmr gms gmx gnc gne gni gnm gnn gnr gns grc gre grg gri grm grn grr grs grx gsc gse gsg gsi gsm gsn gsr gss gsx gxs icc ice icg ici icm icn icr ics ie- iec iee ieg iei iem ien ier ies iex igc ige igg igi igm ign igr igs iic iie iii iim iin iir iis iix im- imc ime img imi imm imn ims imx in- inc ine ing ini inm inn inr ins inx ir- irc ire irg iri irm irn irr irs irx is- isc ise isg isi ism isn isr iss ixc ixe ixi ixn m-r mc- mcc mce mcg mci mcm mcn mcr mcs mcx mec mee meg mei mem men mer mes mex mgc mge mgi mgm mgn mgr mgs mgx mi- mic mie mig mii mim min mir mis mix mmc mme mmg mmi mmm mmn mmr mms mmx mnc mne mng mni mnm mnn mnr mns mrc mre mrg mri mrm mrn mrr mrs mrx msc mse msg msi msm msn msr mss msx mxc mxi mxn mxr mxs n-i ncc nce ncg nci ncm ncn ncr ncs ncx ne- nec nee neg nei nem nen ner nes nex ngc nge ngg ngi ngm ngn ngs nic nie nig nii nim nin nir nis nix nmc nme nmg nmi nmm nmn nmr nms nnc nne nng nni nnm nnn nns nrc nre nrg nri nrm nrn nrr nrs nrx nsc nse nsg nsi nsm nsn nsr nss nsx nxc rcc rce rcg rci rcm rcn rcr rcs rcx re- rec ree reg rei rem ren rer res rex rgc rge rgg rgi rgn rgr rgs rgx ric rie rig rii rim rin rir ris rix rmc rme rmg rmi rmm rmn rmr rms rmx rnc rng rni rnm rnn rnr rns rrc rrg rri rrm rrn rrr rrs rsc rse rsg rsi rsm rsn rsr rss rsx rxr rxs scc sce scg sci scm scn scr scs scx se- sec see seg sei sem sen ser ses sex sgc sge sgg sgi sgm sgn sgr sgs sgx sic sie sig sii sim sin sir sis six smc sme smg smi smm smn smr sms smx snc sne sng sni snm snn snr sns sr- src sre srg sri srm srn srr srs srx ss- ssc sse ssg ssi ssm ssn ssr sss ssx sxc sxi sxm sxn sxs xci xcr xcx xee xeg xem xen xer xes xex xge xgi xic xie xii xin xis xix xmc xmg xmi xmm xmr xms xmx xnc xns xrc xrx xsc xsi xsm xss xxi xxx