-ic a-a a-c a-i a-t aaa aac aae aag aai aas aat ac- aca acc ace acg aci acs act aea aec aee aeg aei aes aet ag- aga agc age agg agi ags agt ai- aia aic aie aig aii ais ait as- asa asc ase asg asi ass ast at- ata atc ate atg ati ats att c-- caa cac cae cag cai cas cat cca ccc cce ccg cci ccs cct ce- cea cec cee ceg cei ces cet cga cgc cge cgg cgi cgs cgt ci- cia cic cie cig cii cis cit csa csc cse csg csi css cst cta ctc cte ctg cti cts ctt eaa eac eae eag eai eas eat ec- eca ecc ece ecg eci ecs ect eea eec eee eeg ees eet ega egc ege egg egi egs egt eia eic eie eig eii eis eit es- esa esc ese esg esi ess est eta etc ete etg eti ets ett gaa gac gae gag gai gas gat gca gcc gce gcg gci gcs gct ge- gea gec gee geg gei ges get gga ggc ggg ggi ggs ggt gia gic gie gig gii gis git gsa gsc gse gsg gsi gss gst gta gtc gte gtg gti gts gtt ia- iaa iac iae iag iai ias iat ica icc ice icg ici ics ict ie- iea iec iee ieg iei ies iet iga igc ige igg igi igs igt iia iic iie iii iis iit is- isa isc ise isg isi iss ist ita itc ite itg iti its itt saa sac sae sag sai sas sat sca scc sce scg sci scs sct se- sea sec see seg sei ses set sga sgc sge sgg sgi sgs sgt sia sic sie sig sii sis sit ss- ssa ssc sse ssg ssi sss sst sta stc ste stg sti sts stt taa tac tae tag tai tas tat tca tcc tce tcg tci tcs tct te- tea tec tee teg tei tes tet tga tgc tge tgg tgi tgs tgt tia tic tie tig tii tis tit tsa tsc tse tsg tsi tss tst tta ttc tte ttg tti tts ttt