-er -ic c-- ccc cce cci cck ccn ccr ccs cct ce- cec cee cei cek cen cer ces cet ci- cic cie cii cik cin cir cis cit ckc cki cks ckt cn- cnc cne cni cnn cnr cns cnt crc cre cri crk crn crr crs crt csc cse csi csk csn csr css cst ctc cte cti ctk ctn ctr cts ctt ec- ecc ece eci eck ecn ecr ecs ect eec eee eek een eer ees eet eic eie eii eik ein eir eis eit ekc eke eki ekr eks ekt en- enc ene eni enk enn enr ens ent erc ere eri erk ern err ers ert es- esc ese esi esk esn esr ess est etc ete eti etk etn etr ets ett icc ice ici ick icn icr ics ict ie- iec iee iei iek ien ier ies iet iic iie iii iin iir iis iit ikc ike iki ikk ikr iks ikt in- inc ine ini ink inn inr ins int ir- irc ire iri irk irn irr irs irt is- isc ise isi isk isn isr iss ist itc ite iti itk itn its itt k-t kcc kce kci kck kcn kcr kcs kct ke- kec kee kei kek ken ker kes ket kic kie kii kik kin kir kis kit kkc kke kki kkk kkn kkr kks kkt kn- knc kne kni knk knn knr knt krc kri krk krn krr krs krt ksc kse ksi ksk ksn ksr kss kst ktc kte ktk ktn ktr kts ktt n-i ncc nce nci nck ncn ncr ncs nct ne- nec nee nei nek nen ner nes net nic nie nii nik nin nir nis nit nkc nke nki nkk nkn nkr nks nkt nnc nne nni nnk nnn nns nnt nrc nre nri nrk nrn nrr nrs nrt nsc nse nsi nsk nsn nsr nss nst ntc nte nti ntk ntn ntr nts ntt rcc rce rci rcn rcr rcs rct re- rec ree rei rek ren rer res ret ric rie rii rik rin rir ris rit rkc rke rkk rks rkt rnc rni rnn rnr rns rnt rrc rri rrk rrn rrr rrs rrt rsc rse rsi rsk rsn rsr rss rst rtc rte rti rtk rtn rtr rts rtt scc sce sci sck scn scr scs sct se- sec see sei sek sen ser ses set sic sie sii sik sin sir sis sit sk- skc ske ski skk skr sks skt snc sne sni snk snn snr sns snt sr- src sre sri srk srn srr srs srt ss- ssc sse ssi ssk ssn ssr sss sst stc ste sti stk stn str sts stt tcc tce tci tck tcn tcr tcs tct te- tec tee tei tek ten ter tes tet tic tie tii tik tin tir tis tit tkc tke tkk tkr tks tkt tnc tne tni tnk tnn tnr tns tnt trc tre tri trk trn trr trs trt tsc tse tsi tsk tsn tsr tss tst ttc tte tti ttk ttn ttr tts ttt