-er -ic c-- ccc cce cci cck ccm ccn ccr ccs ce- cec cee cei cek cem cen cer ces ci- cic cie cii cik cim cin cir cis ckc cki ckm cks cmc cme cmi cmk cmm cmn cmr cms cn- cnc cne cni cnm cnn cnr cns crc cre cri crk crm crn crr crs csc cse csi csk csm csn csr css ec- ecc ece eci eck ecm ecn ecr ecs eec eee eek eem een eer ees eic eie eii eik eim ein eir eis ekc eke eki ekr eks em- emc eme emi emk emm emn emr ems en- enc ene eni enk enm enn enr ens erc ere eri erk erm ern err ers es- esc ese esi esk esm esn esr ess icc ice ici ick icm icn icr ics ie- iec iee iei iek iem ien ier ies iic iie iii iim iin iir iis ikc ike iki ikk ikr iks im- imc ime imi imm imn ims in- inc ine ini ink inm inn inr ins ir- irc ire iri irk irm irn irr irs is- isc ise isi isk ism isn isr iss kcc kce kci kck kcm kcn kcr kcs ke- kec kee kei kek kem ken ker kes kic kie kii kik kim kin kir kis kkc kke kki kkk kkm kkn kkr kks kmc kme kmi kmk kmm kms kn- knc kne kni knk knm knn knr krc kri krk krn krr krs ksc kse ksi ksk ksm ksn ksr kss m-r mc- mcc mce mci mck mcm mcn mcr mcs mec mee mei mek mem men mer mes mi- mic mie mii mik mim min mir mis mkc mke mkk mkm mkn mkr mks mmc mme mmi mmk mmm mmn mmr mms mnc mne mni mnk mnm mnn mnr mns mrc mre mri mrk mrm mrn mrr mrs msc mse msi msk msm msn msr mss n-i ncc nce nci nck ncm ncn ncr ncs ne- nec nee nei nek nem nen ner nes nic nie nii nik nim nin nir nis nkc nke nki nkk nkm nkn nkr nks nmc nme nmi nmk nmm nmn nmr nms nnc nne nni nnk nnm nnn nns nrc nre nri nrk nrm nrn nrr nrs nsc nse nsi nsk nsm nsn nsr nss rcc rce rci rcm rcn rcr rcs re- rec ree rei rek rem ren rer res ric rie rii rik rim rin rir ris rkc rke rkk rkm rks rmc rme rmi rmm rmn rmr rms rnc rni rnm rnn rnr rns rrc rri rrk rrm rrn rrr rrs rsc rse rsi rsk rsm rsn rsr rss scc sce sci sck scm scn scr scs se- sec see sei sek sem sen ser ses sic sie sii sik sim sin sir sis sk- skc ske ski skk skm skr sks smc sme smi smk smm smn smr sms snc sne sni snk snm snn snr sns sr- src sre sri srk srm srn srr srs ss- ssc sse ssi ssk ssm ssn ssr sss