-er a-a a-c a-t aaa aac aae aag aan aao aar aas aat aau ac- aca acc ace acg acn aco acr acs act acu aea aec aee aeg aen aeo aer aes aet aeu ag- aga agc age agg agn ago agr ags agt agu an- ana anc ane ang ann ano anr ans ant anu aoa aoc aoe aog aon aoo aor aos aot aou ar- ara arc are arg arn aro arr ars art aru as- asa asc ase asg asn aso asr ass ast asu at- ata atc ate atg atn ato atr ats att atu au- aua auc aue aug aun auo aur aus aut c-- caa cac cae cag can cao car cas cat cau cca ccc cce ccg ccn cco ccr ccs cct ccu ce- cea cec cee ceg cen ceo cer ces cet ceu cga cgc cge cgg cgn cgo cgr cgs cgt cgu cn- cna cnc cne cng cnn cno cnr cns cnt cnu co- coa coc coe cog con coo cor cos cot cou cra crc cre crg crn cro crr crs crt cru csa csc cse csg csn cso csr css cst csu cta ctc cte ctg ctn cto ctr cts ctt ctu cua cuc cue cug cun cuo cur cus cut cuu eaa eac eae eag ean eao ear eas eat eau ec- eca ecc ece ecg ecn eco ecr ecs ect ecu eea eec eee eeg een eeo eer ees eet ega egc ege egg egn ego egr egs egt egu en- ena enc ene eng enn eno enr ens ent enu eo- eoa eoc eoe eog eon eoo eor eos eot eou era erc ere erg ern ero err ers ert eru es- esa esc ese esg esn eso esr ess est esu eta etc ete etg etn eto etr ets ett etu eu- eua euc eue eug eun eur eus eut gaa gac gae gag gan gao gar gas gat gau gca gcc gce gcg gcn gco gcr gcs gct gcu ge- gea gec gee geg gen geo ger ges get geu gga ggc ggg ggn ggo ggr ggs ggt ggu gna gnc gne gnn gno gnr gns gnt gnu goa goc goe gog gon goo gor gos got gou gra grc gre grg grn gro grr grs grt gru gsa gsc gse gsg gsn gso gsr gss gst gsu gta gtc gte gtg gtn gto gtr gts gtt gtu gu- gua guc gue gug gun guo gur gus gut guu naa nac nae nag nan nao nar nas nat nau nca ncc nce ncg ncn nco ncr ncs nct ncu ne- nea nec nee neg nen neo ner nes net neu nga ngc nge ngg ngn ngo ngs ngt ngu nna nnc nne nng nnn nno nns nnt nnu no- noa noc noe nog non noo nor nos not nou nra nrc nre nrg nrn nro nrr nrs nrt nru nsa nsc nse nsg nsn nso nsr nss nst nsu nta ntc nte ntg ntn nto ntr nts ntt ntu nua nuc nue nug nun nuo nur nus nut nuu oaa oac oae oag oan oao oar oas oat oau oc- oca occ ocg ocn oco ocr ocs oct ocu oea oec oee oeg oen oeo oer oes oet oga ogc oge ogg ogn ogo ogs ogt on- ona onc one ong onn ono onr ons ont onu oo- ooa ooc oog oon ooo oor oos oot or- ora orc ore org orn oro orr ors ort oru os- osa osc ose osg osn oso osr oss ost osu ot- ota otc ote otg otn oto otr ots ott otu ou- oua ouc oue oun ouo our ous out ra- raa rac rae rag ran rao rar ras rat rau rca rcc rce rcg rcn rco rcr rcs rct rcu re- rea rec ree reg ren reo rer res ret reu rga rgc rge rgg rgn rgo rgr rgs rgt rna rnc rng rnn rno rnr rns rnt rnu roa roc roe rog ron roo ror ros rot rou rra rrc rrg rrn rrr rrs rrt rru rsa rsc rse rsg rsn rso rsr rss rst rsu rta rtc rte rtg rtn rto rtr rts rtt rtu rua ruc rue rug run ruo rur rus rut ruu saa sac sae sag san sao sar sas sat sau sca scc sce scg scn sco scr scs sct scu se- sea sec see seg sen seo ser ses set seu sga sgc sge sgg sgn sgo sgr sgs sgt sgu sna snc sne sng snn sno snr sns snt snu soa soc soe sog son soo sor sos sot sou sr- sra src sre srg srn sro srr srs srt ss- ssa ssc sse ssg ssn sso ssr sss sst ssu sta stc ste stg stn sto str sts stt stu sua suc sue sug sun suo sur sus sut suu taa tac tae tag tan tao tar tas tat tau tca tcc tce tcg tcn tco tcr tcs tct tcu te- tea tec tee teg ten teo ter tes tet teu tga tgc tge tgg tgn tgo tgr tgs tgt tgu tna tnc tne tng tnn tno tnr tns tnt to- toa toc toe tog ton too tor tos tot tou tra trc tre trg trn tro trr trs trt tru tsa tsc tse tsg tsn tso tsr tss tst tsu tta ttc tte ttg ttn tto ttr tts ttt ttu tua tuc tue tug tun tuo tur tus tut tuu ua- uaa uac uae uag uan uao uar uas uat uau uca ucc uce ucg ucn uco ucr ucs uct ucu uea uec uee ueg uen uer ues uet uga ugc uge ugg ugn ugo ugr ugs ugt ugu un- una unc une ung unn uno unr uns unt unu uoa uoc uoe uog uon uoo uor uos uot ur- ura urc ure urg urn uro urr urs urt uru usa usc use usg usn uso usr uss ust usu uta utc ute utn