-er -ic a-a a-c a-i a-t aaa aac aae aaf aag aai aan aar aas aat ac- aca acc ace acf acg aci acn acr acs act aea aec aee aef aeg aei aen aer aes aet af- afa afc afe aff afg afi afn afr afs aft ag- aga agc age agf agg agi agn agr ags agt ai- aia aic aie aif aig aii ain air ais ait an- ana anc ane anf ang ani ann anr ans ant ar- ara arc are arf arg ari arn arr ars art as- asa asc ase asf asg asi asn asr ass ast at- ata atc ate atf atg ati atn atr ats att c-- caa cac cae caf cag cai can car cas cat cca ccc cce ccf ccg cci ccn ccr ccs cct ce- cea cec cee cef ceg cei cen cer ces cet cfa cfc cfe cff cfg cfi cfn cfr cfs cft cga cgc cge cgg cgi cgn cgr cgs cgt ci- cia cic cie cif cig cii cin cir cis cit cn- cna cnc cne cnf cng cni cnn cnr cns cnt cra crc cre crf crg cri crn crr crs crt csa csc cse csf csg csi csn csr css cst cta ctc cte ctf ctg cti ctn ctr cts ctt eaa eac eae eaf eag eai ean ear eas eat ec- eca ecc ece ecf ecg eci ecn ecr ecs ect eea eec eee eef eeg een eer ees eet ef- efa efc efe eff efg efi efr efs eft ega egc ege egf egg egi egn egr egs egt eia eic eie eif eig eii ein eir eis eit en- ena enc ene enf eng eni enn enr ens ent era erc ere erf erg eri ern err ers ert es- esa esc ese esf esg esi esn esr ess est eta etc ete etf etg eti etn etr ets ett faa fac fae faf fag fai fan far fas fat fca fcc fce fcf fcg fci fcn fcr fcs fct fea fec fee fef feg fei fen fer fes fet ffa ffc ffe fff ffg ffi ffn ffr ffs fft fga fgc fge fgf fgg fgi fgn fgr fgs fgt fia fic fie fif fig fii fin fir fis fit fna fnc fne fnf fng fni fnn fnr fns fnt fra frc fre frf frg fri frn frr frs frt fsa fsc fse fsf fsg fsi fsn fsr fss fst fta ftc fte ftf ftg fti ftn ftr fts ftt gaa gac gae gaf gag gai gan gar gas gat gca gcc gce gcf gcg gci gcn gcr gcs gct ge- gea gec gee gef geg gei gen ger ges get gfa gfc gfe gff gfi gfr gfs gft gga ggc ggg ggi ggn ggr ggs ggt gia gic gie gif gig gii gin gir gis git gna gnc gne gnf gni gnn gnr gns gnt gra grc gre grf grg gri grn grr grs grt gsa gsc gse gsf gsg gsi gsn gsr gss gst gta gtc gte gtf gtg gti gtn gtr gts gtt i-f ia- iaa iac iae iaf iag iai ian iar ias iat ica icc ice icf icg ici icn icr ics ict ie- iea iec iee ief ieg iei ien ier ies iet ifa ifc ife iff ifg ifi ifn ifr ifs ift iga igc ige igf igg igi ign igr igs igt iia iic iie iif iii iin iir iis iit in- ina inc ine inf ing ini inn inr ins int ir- ira irc ire irf irg iri irn irr irs irt is- isa isc ise isf isg isi isn isr iss ist ita itc ite itf itg iti itn its itt n-i naa nac nae naf nag nai nan nar nas nat nca ncc nce ncf ncg nci ncn ncr ncs nct ne- nea nec nee nef neg nei nen ner nes net nfa nfc nfe nff nfi nfn nfr nfs nft nga ngc nge ngf ngg ngi ngn ngs ngt nia nic nie nif nig nii nin nir nis nit nna nnc nne nnf nng nni nnn nns nnt nra nrc nre nrf nrg nri nrn nrr nrs nrt nsa nsc nse nsf nsg nsi nsn nsr nss nst nta ntc nte ntf ntg nti ntn ntr nts ntt ra- raa rac rae raf rag rai ran rar ras rat rca rcc rce rcf rcg rci rcn rcr rcs rct re- rea rec ree ref reg rei ren rer res ret rfa rfc rfe rff rfg rfi rfn rfr rfs rft rga rgc rge rgf rgg rgi rgn rgr rgs rgt ria ric rie rif rig rii rin rir ris rit rna rnc rng rni rnn rnr rns rnt rra rrc rrf rrg rri rrn rrr rrs rrt rsa rsc rse rsf rsg rsi rsn rsr rss rst rta rtc rte rtf rtg rti rtn rtr rts rtt saa sac sae saf sag sai san sar sas sat sca scc sce scf scg sci scn scr scs sct se- sea sec see sef seg sei sen ser ses set sfa sfc sfe sff sfg sfi sfn sfr sfs sft sga sgc sge sgf sgg sgi sgn sgr sgs sgt sia sic sie sif sig sii sin sir sis sit sna snc sne snf sng sni snn snr sns snt sr- sra src sre srf srg sri srn srr srs srt ss- ssa ssc sse ssf ssg ssi ssn ssr sss sst sta stc ste stf stg sti stn str sts stt taa tac tae taf tag tai tan tar tas tat tca tcc tce tcf tcg tci tcn tcr tcs tct te- tea tec tee tef teg tei ten ter tes tet tfa tfc tfe tff tfg tfi tfn tfr tfs tft tga tgc tge tgf tgg tgi tgn tgr tgs tgt tia tic tie tif tig tii tin tir tis tit tna tnc tne tnf tng tni tnn tnr tns tnt tra trc tre trf trg tri trn trr trs