-ic a-a a-c a-i a-t aaa aac aag aai aao aar aas aat aau ac- aca acc acg aci aco acr acs act acu ag- aga agc agg agi ago agr ags agt agu ai- aia aic aig aii aio air ais ait aiu aoa aoc aog aoi aoo aor aos aot aou ar- ara arc arg ari aro arr ars art aru as- asa asc asg asi aso asr ass ast asu at- ata atc atg ati ato atr ats att atu au- aua auc aug aui auo aur aus aut c-- caa cac cag cai cao car cas cat cau cca ccc ccg cci cco ccr ccs cct ccu cga cgc cgg cgi cgo cgr cgs cgt cgu ci- cia cic cig cii cio cir cis cit ciu co- coa coc cog coi coo cor cos cot cou cra crc crg cri cro crr crs crt cru csa csc csg csi cso csr css cst csu cta ctc ctg cti cto ctr cts ctt ctu cua cuc cug cui cuo cur cus cut cuu gaa gac gag gai gao gar gas gat gau gca gcc gcg gci gco gcr gcs gct gcu gga ggc ggg ggi ggo ggr ggs ggt ggu gia gic gig gii gio gir gis git giu goa goc gog goi goo gor gos got gou gra grc grg gri gro grr grs grt gru gsa gsc gsg gsi gso gsr gss gst gsu gta gtc gtg gti gto gtr gts gtt gtu gu- gua guc gug gui guo gur gus gut guu ia- iaa iac iag iai iao iar ias iat iau ica icc icg ici ico icr ics ict icu iga igc igg igi igo igr igs igt igu iia iic iii iio iir iis iit iiu io- ioa ioc iog ioi ioo ior ios iot iou ir- ira irc irg iri iro irr irs irt iru is- isa isc isg isi iso isr iss ist isu ita itc itg iti ito its itt itu iu- iua iuc iug iui iur ius iut o-i oaa oac oag oai oao oar oas oat oau oc- oca occ ocg oci oco ocr ocs oct ocu oga ogc ogg ogi ogo ogs ogt oia oic oii oio oir ois oit oiu oo- ooa ooc oog ooi ooo oor oos oot or- ora orc org ori oro orr ors ort oru os- osa osc osg osi oso osr oss ost osu ot- ota otc otg oti oto otr ots ott otu ou- oua ouc oui ouo our ous out ra- raa rac rag rai rao rar ras rat rau rca rcc rcg rci rco rcr rcs rct rcu rga rgc rgg rgi rgo rgr rgs rgt ria ric rig rii rio rir ris rit roa roc rog roi roo ror ros rot rou rra rrc rrg rri rrr rrs rrt rru rsa rsc rsg rsi rso rsr rss rst rsu rta rtc rtg rti rto rtr rts rtt rtu rua ruc rug rui ruo rur rus rut ruu saa sac sag sai sao sar sas sat sau sca scc scg sci sco scr scs sct scu sga sgc sgg sgi sgo sgr sgs sgt sgu sia sic sig sii sio sir sis sit siu soa soc sog soi soo sor sos sot sou sr- sra src srg sri sro srr srs srt ss- ssa ssc ssg ssi sso ssr sss sst ssu sta stc stg sti sto str sts stt stu sua suc sug sui suo sur sus sut suu taa tac tag tai tao tar tas tat tau tca tcc tcg tci tco tcr tcs tct tcu tga tgc tgg tgi tgo tgr tgs tgt tgu tia tic tig tii tio tir tis tit tiu to- toa toc tog toi too tor tos tot tou tra trc trg tri tro trr trs trt tru tsa tsc tsg tsi tso tsr tss tst tsu tta ttc ttg tti tto ttr tts ttt ttu tua tuc tug tui tuo tur tus tut tuu ua- uaa uac uag uai uao uar uas uat uau uca ucc ucg uci uco ucr ucs uct ucu uga ugc ugg ugi ugo ugr ugs ugt ugu uia uic uig uii uio uir uis uit uiu uoa uoc uog uoo uor uos uot ur- ura urc urg uri uro urr urs urt uru usa usc usg usi uso usr uss ust usu uta utc uti uto utr uts utt utu uua uuc uug uur uus uut uuu