-er a-a a-c a-t aaa aac aae aaf aag aam aan aar aas aat ac- aca acc ace acf acg acm acn acr acs act aea aec aee aef aeg aem aen aer aes aet af- afa afc afe aff afg afm afn afr afs aft ag- aga agc age agf agg agm agn agr ags agt ama amc ame amf amg amm amn amr ams amt an- ana anc ane anf ang anm ann anr ans ant ar- ara arc are arf arg arm arn arr ars art as- asa asc ase asf asg asm asn asr ass ast at- ata atc ate atf atg atm atn atr ats att c-- caa cac cae caf cag cam can car cas cat cca ccc cce ccf ccg ccm ccn ccr ccs cct ce- cea cec cee cef ceg cem cen cer ces cet cfa cfc cfe cff cfg cfm cfn cfr cfs cft cga cgc cge cgg cgm cgn cgr cgs cgt cma cmc cme cmf cmg cmm cmn cmr cms cmt cn- cna cnc cne cnf cng cnm cnn cnr cns cnt cra crc cre crf crg crm crn crr crs crt csa csc cse csf csg csm csn csr css cst cta ctc cte ctf ctg ctm ctn ctr cts ctt eaa eac eae eaf eag eam ean ear eas eat ec- eca ecc ece ecf ecg ecm ecn ecr ecs ect eea eec eee eef eeg eem een eer ees eet ef- efa efc efe eff efg efm efr efs eft ega egc ege egf egg egm egn egr egs egt em- ema emc eme emf emg emm emn emr ems emt en- ena enc ene enf eng enm enn enr ens ent era erc ere erf erg erm ern err ers ert es- esa esc ese esf esg esm esn esr ess est eta etc ete etf etg etm etn etr ets ett faa fac fae faf fag fam fan far fas fat fca fcc fce fcf fcg fcm fcn fcr fcs fct fea fec fee fef feg fem fen fer fes fet ffa ffc ffe fff ffg ffm ffn ffr ffs fft fga fgc fge fgf fgg fgm fgn fgr fgs fgt fma fmc fme fmf fmg fmm fmn fmr fms fmt fna fnc fne fnf fng fnm fnn fnr fns fnt fra frc fre frf frg frm frn frr frs frt fsa fsc fse fsf fsg fsm fsn fsr fss fst fta ftc fte ftf ftg ftm ftn ftr fts ftt gaa gac gae gaf gag gam gan gar gas gat gca gcc gce gcf gcg gcm gcn gcr gcs gct ge- gea gec gee gef geg gem gen ger ges get gfa gfc gfe gff gfm gfr gfs gft gga ggc ggg ggm ggn ggr ggs ggt gma gmc gme gmf gmg gmm gmn gmr gms gmt gna gnc gne gnf gnm gnn gnr gns gnt gra grc gre grf grg grm grn grr grs grt gsa gsc gse gsf gsg gsm gsn gsr gss gst gta gtc gte gtf gtg gtm gtn gtr gts gtt m-f m-r maa mac mae maf mag mam man mar mas mat mc- mca mcc mce mcf mcg mcm mcn mcr mcs mct mea mec mee mef meg mem men mer mes met mfa mfc mfe mff mfg mfm mfn mfr mfs mft mga mgc mge mgf mgm mgn mgr mgs mgt mma mmc mme mmf mmg mmm mmn mmr mms mmt mna mnc mne mnf mng mnm mnn mnr mns mnt mra mrc mre mrf mrg mrm mrn mrr mrs mrt msa msc mse msf msg msm msn msr mss mst mta mtc mte mtf mtg mtm mtn mtr mts mtt naa nac nae naf nag nam nan nar nas nat nca ncc nce ncf ncg ncm ncn ncr ncs nct ne- nea nec nee nef neg nem nen ner nes net nfa nfc nfe nff nfn nfr nfs nft nga ngc nge ngf ngg ngm ngn ngs ngt nma nmc nme nmg nmm nmn nmr nms nmt nna nnc nne nnf nng nnm nnn nns nnt nra nrc nre nrf nrg nrm nrn nrr nrs nrt nsa nsc nse nsf nsg nsm nsn nsr nss nst nta ntc nte ntf ntg ntm ntn ntr nts ntt ra- raa rac rae raf rag ram ran rar ras rat rca rcc rce rcf rcg rcm rcn rcr rcs rct re- rea rec ree ref reg rem ren rer res ret rfa rfc rfe rff rfg rfm rfn rfr rfs rft rga rgc rge rgf rgg rgn rgr rgs rgt rma rmc rme rmf rmg rmm rmn rmr rms rmt rna rnc rng rnm rnn rnr rns rnt rra rrc rrf rrg rrm rrn rrr rrs rrt rsa rsc rse rsf rsg rsm rsn rsr rss rst rta rtc rte rtf rtg rtm rtn rtr rts rtt saa sac sae saf sag sam san sar sas sat sca scc sce scf scg scm scn scr scs sct se- sea sec see sef seg sem sen ser ses set sfa sfc sfe sff sfg sfm sfn sfr sfs sft sga sgc sge sgf sgg sgm sgn sgr sgs sgt sma smc sme smf smg smm smn smr sms smt sna snc sne snf sng snm snn snr sns snt sr- sra src sre srf srg srm srn srr srs srt ss- ssa ssc sse ssf ssg ssm ssn ssr sss sst sta stc ste stf stg stm stn str sts stt taa tac tae taf tag tam tan tar tas tat tca tcc tce tcf tcg tcm tcn tcr tcs tct te- tea tec tee tef teg tem ten ter tes tet tfa tfc tfe tff tfg tfm tfn tfr tfs tft tga tgc tge tgf tgg tgm tgn tgr tgs tgt tma tmc tme tmf tmg tmm tmn tmr tms tmt tna tnc tne tnf tng tnm tnn tnr tns tnt tra trc tre trf trg trm trn trr trs trt tsa tsc tse tsf tsg tsm tsn