-er a-a a-c a-t aaa aac aae aag aaj aak aan aar aas aat ac- aca acc ace acg acj ack acn acr acs act aea aec aee aeg aej aek aen aer aes aet ag- aga agc age agg agj agk agn agr ags agt aja ajc aje ajj ajk ajn ajr ajs ajt aka akc ake akg akj akk akn akr aks an- ana anc ane ang anj ank ann anr ans ant ar- ara arc are arg arj ark arn arr ars art as- asa asc ase asg asj ask asn asr ass ast at- ata atc ate atg atn atr ats att c-- c-j caa cac cae cag caj cak can car cas cat cca ccc cce ccg ccj cck ccn ccr ccs cct ce- cea cec cee ceg cej cek cen cer ces cet cga cgc cge cgg cgn cgr cgs cgt cja cjc cjg cjk cjr cjs cka ckc cks ckt cn- cna cnc cne cng cnj cnn cnr cns cnt cra crc cre crg crj crk crn crr crs crt csa csc cse csg csj csk csn csr css cst cta ctc cte ctg ctk ctn ctr cts ctt eaa eac eae eag eaj eak ean ear eas eat ec- eca ecc ece ecg ecj eck ecn ecr ecs ect eea eec eee eeg eek een eer ees eet ega egc ege egg egn egr egs egt eja ejc ejt eka ekc eke ekg ekr eks ekt en- ena enc ene eng enk enn enr ens ent era erc ere erg erk ern err ers ert es- esa esc ese esg esk esn esr ess est eta etc ete etg etj etk etn etr ets ett gaa gac gae gag gaj gak gan gar gas gat gca gcc gce gcg gck gcn gcr gcs gct ge- gea gec gee geg gek gen ger ges get gga ggc ggg ggj ggn ggr ggs ggt gja gjc gje gjg gjr gjt gka gkn gks gkt gna gnc gne gnn gnr gns gnt gra grc gre grg grj grk grn grr grs grt gsa gsc gse gsg gsj gsk gsn gsr gss gst gta gtc gte gtg gtk gtn gtr gts gtt jaa jac jae jag jaj jak jan jar jas jat jca jcc jce jck jcr jcs jct jea jec jee jeg jej jek jen jer jes jet jga jge jgn jgr jgs jgt jja jjc jjg jjj jjk jjr jjs jka jkk jkn jkr jks jkt jna jnc jne jng jnj jnn jnr jns jnt jra jrc jrg jrk jrn jrr jrs jrt jsa jsc jse jsg jsj jsk jsn jsr jss jst jta jtc jte jtg jtk jtn jtr jts jtt k-t ka- kaa kac kae kag kaj kak kan kar kas kat kca kcc kce kcg kck kcn kcr kcs kct ke- kea kec kee keg kek ken ker kes ket kga kgc kgs kjc kje kjr kjs kkc kke kkk kkn kkr kks kkt kn- kna knc kne kng knk knn knr knt kra krc krg krk krn krr krs krt ksa ksc kse ksg ksk ksn ksr kss kst kta ktc kte ktg ktj ktk ktn ktr kts ktt naa nac nae nag naj nak nan nar nas nat nca ncc nce ncg nck ncn ncr ncs nct ne- nea nec nee neg nej nek nen ner nes net nga ngc nge ngg ngj ngk ngn ngs ngt nja njc nje njk njn njs nka nkc nke nkj nkk nkn nkr nks nkt nna nnc nne nng nnk nnn nns nnt nra nrc nre nrg nrj nrk nrn nrr nrs nrt nsa nsc nse nsg nsk nsn nsr nss nst nta ntc nte ntg ntk ntn ntr nts ntt ra- raa rac rae rag raj rak ran rar ras rat rca rcc rce rcg rcj rcn rcr rcs rct re- rea rec ree reg rek ren rer res ret rga rgc rge rgg rgk rgn rgr rgs rgt rja rjc rjg rjk rjr rkc rke rkg rkk rks rkt rna rnc rng rnn rnr rns rnt rra rrc rrg rrk rrn rrr rrs rrt rsa rsc rse rsg rsj rsk rsn rsr rss rst rta rtc rte rtg rtj rtk rtn rtr rts rtt saa sac sae sag saj sak san sar sas sat sca scc sce scg scj sck scn scr scs sct se- sea sec see seg sej sek sen ser ses set sga sgc sge sgg sgk sgn sgr sgs sgt sja sjc sje sjj sjk sjr sjs sjt sk- ska skc ske skg skj skk skr sks skt sna snc sne sng snj snk snn snr sns snt sr- sra src sre srg srj srk srn srr srs srt ss- ssa ssc sse ssg ssj ssk ssn ssr sss sst sta stc ste stg stj stk stn str sts stt taa tac tae tag taj tak tan tar tas tat tca tcc tce tcg tcj tck tcn tcr tcs tct te- tea tec tee teg tej tek ten ter tes tet tga tgc tge tgg tgk tgn tgr tgs tgt tjc tje tjr tjs tka tkc tke tkg tkk tkr tks tkt tna tnc tne tng tnk tnn tnr tns tnt tra trc tre trg trk trn trr trs trt tsa tsc tse tsg tsj tsk tsn tsr tss tst tta ttc tte ttg ttk ttn ttr tts ttt