-er a-a a-c a-t aaa aac aae aag aak aan aar aas aat aau ac- aca acc ace acg ack acn acr acs act acu aea aec aee aeg aek aen aer aes aet aeu ag- aga agc age agg agk agn agr ags agt agu aka akc ake akg akk akn akr aks aku an- ana anc ane ang ank ann anr ans ant anu ar- ara arc are arg ark arn arr ars art aru as- asa asc ase asg ask asn asr ass ast asu at- ata atc ate atg atn atr ats att atu au- aua auc aue aug auk aun aur aus aut c-- caa cac cae cag cak can car cas cat cau cca ccc cce ccg cck ccn ccr ccs cct ccu ce- cea cec cee ceg cek cen cer ces cet ceu cga cgc cge cgg cgn cgr cgs cgt cgu cka ckc cks ckt cn- cna cnc cne cng cnn cnr cns cnt cnu cra crc cre crg crk crn crr crs crt cru csa csc cse csg csk csn csr css cst csu cta ctc cte ctg ctk ctn ctr cts ctt ctu cua cuc cue cug cuk cun cur cus cut cuu eaa eac eae eag eak ean ear eas eat eau ec- eca ecc ece ecg eck ecn ecr ecs ect ecu eea eec eee eeg eek een eer ees eet ega egc ege egg egn egr egs egt egu eka ekc eke ekg ekr eks ekt eku en- ena enc ene eng enk enn enr ens ent enu era erc ere erg erk ern err ers ert eru es- esa esc ese esg esk esn esr ess est esu eta etc ete etg etk etn etr ets ett etu eu- eua euc eue eug eun eur eus eut gaa gac gae gag gak gan gar gas gat gau gca gcc gce gcg gck gcn gcr gcs gct gcu ge- gea gec gee geg gek gen ger ges get geu gga ggc ggg ggn ggr ggs ggt ggu gka gkn gks gkt gna gnc gne gnn gnr gns gnt gnu gra grc gre grg grk grn grr grs grt gru gsa gsc gse gsg gsk gsn gsr gss gst gsu gta gtc gte gtg gtk gtn gtr gts gtt gtu gu- gua guc gue gug guk gun gur gus gut guu k-t ka- kaa kac kae kag kak kan kar kas kat kau kca kcc kce kcg kck kcn kcr kcs kct kcu ke- kea kec kee keg kek ken ker kes ket kga kgc kgs kgu kkc kke kkk kkn kkr kks kkt kku kn- kna knc kne kng knk knn knr knt knu kra krc krg krk krn krr krs krt kru ksa ksc kse ksg ksk ksn ksr kss kst ksu kta ktc kte ktg ktk ktn ktr kts ktt ktu kuc kue kug kuk kun kur kus kut kuu naa nac nae nag nak nan nar nas nat nau nca ncc nce ncg nck ncn ncr ncs nct ncu ne- nea nec nee neg nek nen ner nes net neu nga ngc nge ngg ngk ngn ngs ngt ngu nka nkc nke nkk nkn nkr nks nkt nku nna nnc nne nng nnk nnn nns nnt nnu nra nrc nre nrg nrk nrn nrr nrs nrt nru nsa nsc nse nsg nsk nsn nsr nss nst nsu nta ntc nte ntg ntk ntn ntr nts ntt ntu nua nuc nue nug nuk nun nur nus nut nuu ra- raa rac rae rag rak ran rar ras rat rau rca rcc rce rcg rcn rcr rcs rct rcu re- rea rec ree reg rek ren rer res ret reu rga rgc rge rgg rgk rgn rgr rgs rgt rkc rke rkg rkk rks rkt rku rna rnc rng rnn rnr rns rnt rnu rra rrc rrg rrk rrn rrr rrs rrt rru rsa rsc rse rsg rsk rsn rsr rss rst rsu rta rtc rte rtg rtk rtn rtr rts rtt rtu rua ruc rue rug ruk run rur rus rut ruu saa sac sae sag sak san sar sas sat sau sca scc sce scg sck scn scr scs sct scu se- sea sec see seg sek sen ser ses set seu sga sgc sge sgg sgk sgn sgr sgs sgt sgu sk- ska skc ske skg skk skr sks skt sku sna snc sne sng snk snn snr sns snt snu sr- sra src sre srg srk srn srr srs srt ss- ssa ssc sse ssg ssk ssn ssr sss sst ssu sta stc ste stg stk stn str sts stt stu sua suc sue sug suk sun sur sus sut suu taa tac tae tag tak tan tar tas tat tau tca tcc tce tcg tck tcn tcr tcs tct tcu te- tea tec tee teg tek ten ter tes tet teu tga tgc tge tgg tgk tgn tgr tgs tgt tgu 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 tru tsa tsc tse tsg tsk tsn tsr tss tst tsu tta ttc tte ttg ttk ttn ttr tts ttt ttu tua tuc tue tug tuk tun tur tus tut tuu ua- uaa uac uae uag uak uan uar uas uat uau uca ucc uce ucg uck ucn ucr ucs uct ucu uea uec uee ueg uen uer ues uet uga ugc uge ugg ugk ugn ugr ugs ugt ugu uka ukc uke ukk ukn ukr uku un- una unc une ung unk unn unr uns unt unu ur- ura urc ure urg urk urn urr urs urt uru usa usc use usg usk usn usr uss ust usu uta utc ute utk utn utr uts utt utu uua uuc uue uug uun uur uus uut uuu