-er -ic c-- ccc cce cci cck ccl ccn ccr ccs ccu ce- cec cee cei cek cel cen cer ces ceu ci- cic cie cii cik cil cin cir cis ciu ckc cki cks cl- clc cle cli clk cll cln clr cls clu cn- cnc cne cni cnl cnn cnr cns cnu crc cre cri crk crl crn crr crs cru csc cse csi csk csl csn csr css csu cuc cue cui cuk cul cun cur cus cuu ec- ecc ece eci eck ecl ecn ecr ecs ecu eec eee eek eel een eer ees eic eie eii eik eil ein eir eis eiu ekc eke eki ekl ekr eks eku elc ele eli elk ell eln elr els elu en- enc ene eni enk enl enn enr ens enu erc ere eri erk erl ern err ers eru es- esc ese esi esk esl esn esr ess esu eu- euc eue eui eul eun eur eus icc ice ici ick icl icn icr ics icu ie- iec iee iei iek iel ien ier ies iic iie iii iil iin iir iis iiu ikc ike iki ikk ikl ikr iks iku il- ilc ile ili ilk ill iln ilr ils ilu in- inc ine ini ink inl inn inr ins inu ir- irc ire iri irk irl irn irr irs iru is- isc ise isi isk isl isn isr iss isu iu- iuc iue iui iur ius kcc kce kci kck kcl kcn kcr kcs kcu ke- kec kee kei kek kel ken ker kes kic kie kii kik kil kin kir kis kiu kkc kke kki kkk kkl kkn kkr kks kku kl- klc kli klr kls klu kn- knc kne kni knk knl knn knr knu krc kri krk krl krn krr krs kru ksc kse ksi ksk ksl ksn ksr kss ksu kuc kue kui kuk kul kun kur kus kuu lcc lce lci lck lcl lcn lcr lcs lcu lec lee lei lek lel len ler les leu lic lie lii lik lil lin lir lis liu lkl lkr lks llc lle lli llk lll lln llr lls llu lnc lne lni lnk lnl lnn lnr lns lnu lrc lri lrk lrn lrr lrs lru lsc lse lsi lsk lsl lsn lsr lss lsu luc lue lui luk lul lun lur lus luu n-i ncc nce nci nck ncl ncn ncr ncs ncu ne- nec nee nei nek nel nen ner nes neu nic nie nii nik nil nin nir nis niu nkc nke nki nkk nkn nkr nks nku nlc nle nli nlk nll nln nlr nls nlu nnc nne nni nnk nnl nnn nns nnu nrc nre nri nrk nrl nrn nrr nrs nru nsc nse nsi nsk nsl nsn nsr nss nsu nuc nue nui nuk nul nun nur nus nuu rcc rce rci rcl rcn rcr rcs rcu re- rec ree rei rek rel ren rer res reu ric rie rii rik ril rin rir ris rkc rke rkk rks rku rlc rle rli rll rln rlr rls rlu rnc rni rnn rnr rns rnu rrc rri rrk rrl rrn rrr rrs rru rsc rse rsi rsk rsl rsn rsr rss rsu ruc rue rui ruk run rur rus ruu scc sce sci sck scl scn scr scs scu se- sec see sei sek sel sen ser ses seu sic sie sii sik sil sin sir sis siu sk- skc ske ski skk skl skr sks sku slc sle sli slk sll sln slr sls slu snc sne sni snk snl snn snr sns snu sr- src sre sri srk srl srn srr srs ss- ssc sse ssi ssk ssl ssn ssr sss ssu suc sue sui suk sul sun sur sus suu ucc uce uci uck ucl ucn ucr ucs ucu uec uee uei uel uen uer ues uic uie uii uil uin uir uis uiu ukc uke uki ukk ukl ukn ukr uku ulc ule uli ulk ull uln ulr uls ulu un- unc une uni unk unl unn unr uns unu ur- urc ure uri urk url urn urr urs uru usc use usi usk usl usn usr uss usu uuc uue uun uur uus uuu