-ic a-a a-c a-i a-t aaa aac aae aag aai aao aas aat ac- aca acc ace acg aci aco acs act aea aec aee aeg aei aeo aes aet ag- aga agc age agg agi ago ags agt ai- aia aic aie aig aii aio ais ait aoa aoc aoe aog aoi aoo aos aot as- asa asc ase asg asi aso ass ast at- ata atc ate atg ati ato ats att c-- caa cac cae cag cai cao cas cat cca ccc cce ccg cci cco ccs cct ce- cea cec cee ceg cei ceo ces cet cga cgc cge cgg cgi cgo cgs cgt ci- cia cic cie cig cii cio cis cit co- coa coc coe cog coi coo cos cot csa csc cse csg csi cso css cst cta ctc cte ctg cti cto cts ctt eaa eac eae eag eai eao eas eat ec- eca ecc ece ecg eci eco ecs ect eea eec eee eeg eeo ees eet ega egc ege egg egi ego egs egt eia eic eie eig eii eio eis eit eo- eoa eoc eoe eog eoi eoo eos eot es- esa esc ese esg esi eso ess est eta etc ete etg eti eto ets ett gaa gac gae gag gai gao gas gat gca gcc gce gcg gci gco gcs gct ge- gea gec gee geg gei geo ges get gga ggc ggg ggi ggo ggs ggt gia gic gie gig gii gio gis git goa goc goe gog goi goo gos got gsa gsc gse gsg gsi gso gss gst gta gtc gte gtg gti gto gts gtt ia- iaa iac iae iag iai iao ias iat ica icc ice icg ici ico ics ict ie- iea iec iee ieg iei ies iet iga igc ige igg igi igo igs igt iia iic iie iii iio iis iit io- ioa ioc ioe iog ioi ioo ios iot is- isa isc ise isg isi iso iss ist ita itc ite itg iti ito its itt o-i oaa oac oae oag oai oao oas oat oc- oca occ ocg oci oco ocs oct oea oec oee oeg oei oeo oes oet oga ogc oge ogg ogi ogo ogs ogt oia oic oie oii oio ois oit oo- ooa ooc oog ooi ooo oos oot os- osa osc ose osg osi oso oss ost ot- ota otc ote otg oti oto ots ott saa sac sae sag sai sao sas sat sca scc sce scg sci sco scs sct se- sea sec see seg sei seo ses set sga sgc sge sgg sgi sgo sgs sgt sia sic sie sig sii sio sis sit soa soc soe sog soi soo sos sot ss- ssa ssc sse ssg ssi sso sss sst sta stc ste stg sti sto sts stt taa tac tae tag tai tao tas tat tca tcc tce tcg tci tco tcs tct te- tea tec tee teg tei teo tes tet tga tgc tge tgg tgi tgo tgs tgt tia tic tie tig tii tio tis tit to- toa toc toe tog toi too tos tot tsa tsc tse tsg tsi tso tss tst tta ttc tte ttg tti tto tts ttt