-er -ic c-- ccc cce cci cck ccl ccm ccr ccs ce- cec cee cei cek cel cem cer ces ci- cic cie cii cik cil cim cir cis ckc cki ckm cks cl- clc cle cli clk cll clm clr cls cmc cme cmi cmk cml cmm cmr cms crc cre cri crk crl crm crr crs csc cse csi csk csl csm csr css ec- ecc ece eci eck ecl ecm ecr ecs eec eee eek eel eem eer ees eic eie eii eik eil eim eir eis ekc eke eki ekl ekr eks elc ele eli elk ell elm elr els em- emc eme emi emk eml emm emr ems erc ere eri erk erl erm err ers es- esc ese esi esk esl esm esr ess icc ice ici ick icl icm icr ics ie- iec iee iei iek iel iem ier ies iic iie iii iil iim iir iis ikc ike iki ikk ikl ikr iks il- ilc ile ili ilk ill ilm ilr ils im- imc ime imi iml imm ims ir- irc ire iri irk irl irm irr irs is- isc ise isi isk isl ism isr iss kcc kce kci kck kcl kcm kcr kcs ke- kec kee kei kek kel kem ker kes kic kie kii kik kil kim kir kis kkc kke kki kkk kkl kkm kkr kks kl- klc kli klm klr kls kmc kme kmi kmk kml kmm kms krc kri krk krl krr krs ksc kse ksi ksk ksl ksm ksr kss lcc lce lci lck lcl lcm lcr lcs lec lee lei lek lel lem ler les lic lie lii lik lil lim lir lis lkl lkr lks llc lle lli llk lll llm llr lls lmc lme lmi lmk lml lmm lmr lms lrc lri lrk lrm lrr lrs lsc lse lsi lsk lsl lsm lsr lss m-r mc- mcc mce mci mck mcl mcm mcr mcs mec mee mei mek mel mem mer mes mi- mic mie mii mik mil mim mir mis mkc mke mkk mkl mkm mkr mks mlc mle mli mlk mll mlm mlr mls mmc mme mmi mmk mml mmm mmr mms mrc mre mri mrk mrl mrm mrr mrs msc mse msi msk msl msm msr mss rcc rce rci rcl rcm rcr rcs re- rec ree rei rek rel rem rer res ric rie rii rik ril rim rir ris rkc rke rkk rkm rks rlc rle rli rll rlm rlr rls rmc rme rmi rml rmm rmr rms rrc rri rrk rrl rrm rrr rrs rsc rse rsi rsk rsl rsm rsr rss scc sce sci sck scl scm scr scs se- sec see sei sek sel sem ser ses sic sie sii sik sil sim sir sis sk- skc ske ski skk skl skm skr sks slc sle sli slk sll slm slr sls smc sme smi smk sml smm smr sms sr- src sre sri srk srl srm srr srs ss- ssc sse ssi ssk ssl ssm ssr sss