-ic a-a a-c a-i a-t aaa aac aag aai aao aap aar aas aat ac- aca acc acg aci aco acp acr acs act ag- aga agc agg agi ago agp agr ags agt ai- aia aic aig aii aio aip air ais ait aoa aoc aog aoi aoo aop aor aos aot ap- apa apc apg api apo app apr aps apt ar- ara arc arg ari aro arp arr ars art as- asa asc asg asi aso asp asr ass ast at- ata atc atg ati ato atp atr ats att c-- caa cac cag cai cao cap car cas cat cca ccc ccg cci cco ccp ccr ccs cct cga cgc cgg cgi cgo cgp cgr cgs cgt ci- cia cic cig cii cio cip cir cis cit co- coa coc cog coi coo cop cor cos cot cpa cpc cpg cpi cpo cpp cpr cps cpt cra crc crg cri cro crp crr crs crt csa csc csg csi cso csp csr css cst cta ctc ctg cti cto ctp ctr cts ctt g-p gaa gac gag gai gao gap gar gas gat gca gcc gcg gci gco gcp gcr gcs gct gga ggc ggg ggi ggo ggp ggr ggs ggt gia gic gig gii gio gip gir gis git goa goc gog goi goo gop gor gos got gpa gpc gpg gpi gpo gpp gpr gps gpt gra grc grg gri gro grp grr grs grt gsa gsc gsg gsi gso gsp gsr gss gst gta gtc gtg gti gto gtp gtr gts gtt ia- iaa iac iag iai iao iap iar ias iat ica icc icg ici ico icp icr ics ict iga igc igg igi igo igp igr igs igt iia iic iii iio iip iir iis iit io- ioa ioc iog ioi ioo iop ior ios iot ipa ipc ipg ipi ipo ipp ipr ips ipt ir- ira irc irg iri iro irp irr irs irt is- isa isc isg isi iso isp isr iss ist ita itc itg iti ito itp its itt o-i oaa oac oag oai oao oap oar oas oat oc- oca occ ocg oci oco ocp ocr ocs oct oga ogc ogg ogi ogo ogp ogs ogt oia oic oii oio oip oir ois oit oo- ooa ooc oog ooi ooo oop oor oos oot op- opa opc opg opi opo opp opr ops opt or- ora orc org ori oro orp orr ors ort os- osa osc osg osi oso osp osr oss ost ot- ota otc otg oti oto otp otr ots ott p-p paa pac pag pai pao pap par pas pat pca pcc pcg pci pco pcp pcr pcs pct pga pgc pgg pgi pgo pgp pgr pgs pgt pia pic pig pii pio pip pir pis pit poa poc pog poi poo pop por pos pot ppa ppc ppg ppi ppo ppp ppr pps ppt pra prc prg pri pro prp prr prs prt ps- psa psc psg psi pso psp psr pss pst pt- pta ptc ptg pti pto ptp ptr pts ptt ra- raa rac rag rai rao rap rar ras rat rca rcc rcg rci rco rcp rcr rcs rct rga rgc rgg rgi rgo rgp rgr rgs rgt ria ric rig rii rio rip rir ris rit roa roc rog roi roo rop ror ros rot rpa rpc rpg rpi rpo rpp rpr rps rpt rra rrc rrg rri rrp rrr rrs rrt rsa rsc rsg rsi rso rsp rsr rss rst rta rtc rtg rti rto rtp rtr rts rtt saa sac sag sai sao sap sar sas sat sca scc scg sci sco scp scr scs sct sga sgc sgg sgi sgo sgp sgr sgs sgt sia sic sig sii sio sip sir sis sit soa soc sog soi soo sop sor sos sot spa spc spg spi spo spp spr sps spt sr- sra src srg sri sro srp srr srs srt ss- ssa ssc ssg ssi sso ssp ssr sss sst sta stc stg sti sto stp str sts stt taa tac tag tai tao tap tar tas tat tca tcc tcg tci tco tcp tcr tcs tct tga tgc tgg tgi tgo tgp tgr tgs tgt tia tic tig tii tio tip tir tis tit to- toa toc tog toi too top tor tos tot tpa tpc tpg tpi tpo tpp tpr tps tpt tra trc trg tri tro trp trr trs trt tsa tsc tsg tsi tso tsp tsr tss tst tta ttc ttg tti tto ttp ttr tts ttt