-ic a-a a-c a-i a-t aaa aac aag aai aao aar aat aay ac- aca acc acg aci aco acr act acy ag- aga agc agg agi ago agr agt agy ai- aia aic aig aii aio air ait aiy aoa aoc aog aoi aoo aor aot ar- ara arc arg ari aro arr art ary at- ata atc atg ati ato atr att ay- aya ayc ayi ayo ayr ayt c-- caa cac cag cai cao car cat cay cca ccc ccg cci cco ccr cct cga cgc cgg cgi cgo cgr cgt cgy ci- cia cic cig cii cio cir cit co- coa coc cog coi coo cor cot coy cra crc crg cri cro crr crt cry cta ctc ctg cti cto ctr ctt cty cya cyc cyg cyo cyr cyt gaa gac gag gai gao gar gat gay gca gcc gcg gci gco gcr gct gga ggc ggg ggi ggo ggr ggt gia gic gig gii gio gir git giy goa goc gog goi goo gor got goy gra grc grg gri gro grr grt gry gta gtc gtg gti gto gtr gtt gty gy- gya gyo gyr ia- iaa iac iag iai iao iar iat ica icc icg ici ico icr ict icy iga igc igg igi igo igr igt igy iia iic iii iio iir iit io- ioa ioc iog ioi ioo ior iot ir- ira irc irg iri iro irr irt iry ita itc itg iti ito itt ity iya iyc iyo iyr iyt iyy o-i oaa oac oag oai oao oar oat oc- oca occ ocg oci oco ocr oct oga ogc ogg ogi ogo ogt ogy oia oic oii oio oir oit oo- ooa ooc oog ooi ooo oor oot or- ora orc org ori oro orr ort ory ot- ota otc otg oti oto otr ott oya oyi oyo ra- raa rac rag rai rao rar rat ray rca rcc rcg rci rco rcr rct rga rgc rgg rgi rgo rgr rgt ria ric rig rii rio rir rit riy roa roc rog roi roo ror rot roy rra rrc rrg rri rrr rrt rta rtc rtg rti rto rtr rtt rty ry- rya ryc ryg ryo ryr ryy taa tac tag tai tao tar tat tay tca tcc tcg tci tco tcr tct tga tgc tgg tgi tgo tgr tgt tgy tia tic tig tii tio tir tit tiy to- toa toc tog toi too tor tot toy tra trc trg tri tro trr trt try tta ttc ttg tti tto ttr ttt tty tya tyc tyg tyo tyr tyt yaa yac yag yai yao yar yat yay yca ycc yci yco ycy yga ygc ygo yig yii yio yir yit yoc yog yoi yoo yor yot yoy yra yrc yrg yro yrt yta ytc yto ytr ytt yyc yyg yyt yyy