-er -ic c-- ccc cce ccf ccg cci cck ccn ccr ccs cct ce- cec cee cef ceg cei cek cen cer ces cet cfc cfe cff cfg cfi cfk cfn cfr cfs cft cgc cge cgg cgi cgn cgr cgs cgt ci- cic cie cif cig cii cik cin cir cis cit ckc cki cks ckt cn- cnc cne cnf cng cni cnn cnr cns cnt crc cre crf crg cri crk crn crr crs crt csc cse csf csg csi csk csn csr css cst ctc cte ctf ctg cti ctk ctn ctr cts ctt ec- ecc ece ecf ecg eci eck ecn ecr ecs ect eec eee eef eeg eek een eer ees eet ef- efc efe eff efg efi efr efs eft egc ege egf egg egi egn egr egs egt eic eie eif eig eii eik ein eir eis eit ekc eke ekf ekg eki ekr eks ekt en- enc ene enf eng eni enk enn enr ens ent erc ere erf erg eri erk ern err ers ert es- esc ese esf esg esi esk esn esr ess est etc ete etf etg eti etk etn etr ets ett fcc fce fcf fcg fci fck fcn fcr fcs fct fec fee fef feg fei fek fen fer fes fet ffc ffe fff ffg ffi ffk ffn ffr ffs fft fgc fge fgf fgg fgi fgn fgr fgs fgt fic fie fif fig fii fik fin fir fis fit fkc fkf fkg fki fkk fkt fnc fne fnf fng fni fnk fnn fnr fns fnt frc fre frf frg fri frk frn frr frs frt fsc fse fsf fsg fsi fsk fsn fsr fss fst ftc fte ftf ftg fti ftk ftn ftr fts ftt gcc gce gcf gcg gci gck gcn gcr gcs gct ge- gec gee gef geg gei gek gen ger ges get gfc gfe gff gfi gfk gfr gfs gft ggc ggg ggi ggn ggr ggs ggt gic gie gif gig gii gik gin gir gis git gkn gks gkt gnc gne gnf gni gnn gnr gns gnt grc gre grf grg gri grk grn grr grs grt gsc gse gsf gsg gsi gsk gsn gsr gss gst gtc gte gtf gtg gti gtk gtn gtr gts gtt i-f icc ice icf icg ici ick icn icr ics ict ie- iec iee ief ieg iei iek ien ier ies iet ifc ife iff ifg ifi ifn ifr ifs ift igc ige igf igg igi igk ign igr igs igt iic iie iif iii iin iir iis iit ikc ike ikf iki ikk ikr iks ikt in- inc ine inf ing ini ink inn inr ins int ir- irc ire irf irg iri irk irn irr irs irt is- isc ise isf isg isi isk isn isr iss ist itc ite itf itg iti itk itn its itt k-t kcc kce kcg kci kck kcn kcr kcs kct ke- kec kee kef keg kei kek ken ker kes ket kfc kff kfg kfi kfs kgc kgf kgi kgs kic kie kif kig kii kik kin kir kis kit kkc kke kki kkk kkn kkr kks kkt kn- knc kne knf kng kni knk knn knr knt krc krf krg kri krk krn krr krs krt ksc kse ksf ksg ksi ksk ksn ksr kss kst ktc kte ktf ktg ktk ktn ktr kts ktt n-i ncc nce ncf ncg nci nck ncn ncr ncs nct ne- nec nee nef neg nei nek nen ner nes net nfc nfe nff nfi nfk nfn nfr nfs nft ngc nge ngf ngg ngi ngk ngn ngs ngt nic nie nif nig nii nik nin nir nis nit nkc nke nkf nki nkk nkn nkr nks nkt nnc nne nnf nng nni nnk nnn nns nnt nrc nre nrf nrg nri nrk nrn nrr nrs nrt nsc nse nsf nsg nsi nsk nsn nsr nss nst ntc nte ntf ntg nti ntk ntn ntr nts ntt rcc rce rcf rcg rci rcn rcr rcs rct re- rec ree ref reg rei rek ren rer res ret rfc rfe rff rfg rfi rfk rfn rfr rfs rft rgc rge rgf rgg rgi rgk rgn rgr rgs rgt ric rie rif rig rii rik rin rir ris rit rkc rke rkf rkg rkk rks rkt rnc rng rni rnn rnr rns rnt rrc rrf rrg rri rrk rrn rrr rrs rrt rsc rse rsf rsg rsi rsk rsn rsr rss rst rtc rte rtf rtg rti rtk rtn rtr rts rtt scc sce scf scg sci sck scn scr scs sct se- sec see sef seg sei sek sen ser ses set sfc sfe sff sfg sfi sfk sfn sfr sfs sft sgc sge sgf sgg sgi sgk sgn sgr sgs sgt sic sie sif sig sii sik sin sir sis sit sk- skc ske skf skg ski skk skr sks skt snc sne snf sng sni snk snn snr sns snt sr- src sre srf srg sri srk srn srr srs srt ss- ssc sse ssf ssg ssi ssk ssn ssr sss sst stc ste stf stg sti stk stn str sts stt tcc tce tcf tcg tci tck tcn tcr tcs tct te- tec tee tef teg tei tek ten ter tes tet tfc tfe tff tfg tfi tfk tfn tfr tfs tft tgc tge tgf tgg tgi tgk tgn tgr tgs tgt tic tie tif tig tii tik tin tir tis tit tkc tke tkg tkk tkr tks tkt tnc tne tnf tng tni tnk tnn tnr tns tnt trc tre trf trg tri trk trn trr trs trt tsc tse tsf tsg tsi tsk tsn tsr tss tst ttc tte ttf ttg tti ttk ttn ttr tts ttt