-ic a-a a-c a-i a-t aaa aac aag aai aan aar aas aat aau ac- aca acc acg aci acn acr acs act acu ag- aga agc agg agi agn agr ags agt agu ai- aia aic aig aii ain air ais ait aiu an- ana anc ang ani ann anr ans ant anu ar- ara arc arg ari arn arr ars art aru as- asa asc asg asi asn asr ass ast asu at- ata atc atg ati atn atr ats att atu au- aua auc aug aui aun aur aus aut c-- caa cac cag cai can car cas cat cau cca ccc ccg cci ccn ccr ccs cct ccu cga cgc cgg cgi cgn cgr cgs cgt cgu ci- cia cic cig cii cin cir cis cit ciu cn- cna cnc cng cni cnn cnr cns cnt cnu cra crc crg cri crn crr crs crt cru csa csc csg csi csn csr css cst csu cta ctc ctg cti ctn ctr cts ctt ctu cua cuc cug cui cun cur cus cut cuu gaa gac gag gai gan gar gas gat gau gca gcc gcg gci gcn gcr gcs gct gcu gga ggc ggg ggi ggn ggr ggs ggt ggu gia gic gig gii gin gir gis git giu gna gnc gni gnn gnr gns gnt gnu gra grc grg gri grn grr grs grt gru gsa gsc gsg gsi gsn gsr gss gst gsu gta gtc gtg gti gtn gtr gts gtt gtu gu- gua guc gug gui gun gur gus gut guu ia- iaa iac iag iai ian iar ias iat iau ica icc icg ici icn icr ics ict icu iga igc igg igi ign igr igs igt igu iia iic iii iin iir iis iit iiu in- ina inc ing ini inn inr ins int inu ir- ira irc irg iri irn irr irs irt iru is- isa isc isg isi isn isr iss ist isu ita itc itg iti itn its itt itu iu- iua iuc iug iui iur ius iut n-i naa nac nag nai nan nar nas nat nau nca ncc ncg nci ncn ncr ncs nct ncu nga ngc ngg ngi ngn ngs ngt ngu nia nic nig nii nin nir nis nit niu nna nnc nng nni nnn nns nnt nnu nra nrc nrg nri nrn nrr nrs nrt nru nsa nsc nsg nsi nsn nsr nss nst nsu nta ntc ntg nti ntn ntr nts ntt ntu nua nuc nug nui nun nur nus nut nuu ra- raa rac rag rai ran rar ras rat rau rca rcc rcg rci rcn rcr rcs rct rcu rga rgc rgg rgi rgn rgr rgs rgt ria ric rig rii rin rir ris rit rna rnc rng rni rnn rnr rns rnt rnu rra rrc rrg rri rrn rrr rrs rrt rru rsa rsc rsg rsi rsn rsr rss rst rsu rta rtc rtg rti rtn rtr rts rtt rtu rua ruc rug rui run rur rus rut ruu saa sac sag sai san sar sas sat sau sca scc scg sci scn scr scs sct scu sga sgc sgg sgi sgn sgr sgs sgt sgu sia sic sig sii sin sir sis sit siu sna snc sng sni snn snr sns snt snu sr- sra src srg sri srn srr srs srt ss- ssa ssc ssg ssi ssn ssr sss sst ssu sta stc stg sti stn str sts stt stu sua suc sug sui sun sur sus sut suu taa tac tag tai tan tar tas tat tau tca tcc tcg tci tcn tcr tcs tct tcu tga tgc tgg tgi tgn tgr tgs tgt tgu tia tic tig tii tin tir tis tit tiu tna tnc tng tni tnn tnr tns tnt tra trc trg tri trn trr trs trt tru tsa tsc tsg tsi tsn tsr tss tst tsu tta ttc ttg tti ttn ttr tts ttt ttu tua tuc tug tui tun tur tus tut tuu ua- uaa uac uag uai uan uar uas uat uau uca ucc ucg uci ucn ucr ucs uct ucu uga ugc ugg ugi ugn ugr ugs ugt ugu uia uic uig uii uin uir uis uit uiu un- una unc ung uni unn unr uns unt unu ur- ura urc urg uri urn urr urs urt uru usa usc usg usi usn usr uss ust usu uta utc uti utn utr uts utt utu uua uuc uug uun uur uus uut uuu