-ic a-a a-c a-i a-t aaa aac aad aae aag aai aao aat ac- aca acc acd ace acg aci aco act ad- ada adc add ade adg adi ado adt aea aec aed aee aeg aei aeo aet ag- aga agc agd age agg agi ago agt ai- aia aic aid aie aig aii aio ait aoa aoc aod aoe aog aoi aoo aot at- ata atc atd ate atg ati ato att c-- caa cac cad cae cag cai cao cat cca ccc ccd cce ccg cci cco cct cda cdc cdd cde cdg cdi cdo cdt ce- cea cec ced cee ceg cei ceo cet cga cgc cgd cge cgg cgi cgo cgt ci- cia cic cid cie cig cii cio cit co- coa coc cod coe cog coi coo cot cta ctc ctd cte ctg cti cto ctt daa dac dad dae dag dai dao dat dca dcc dcd dce dcg dci dco dct dda ddc ddd dde ddg ddi ddo ddt de- dea dec ded dee deg dei deo det dga dgc dgd dge dgg dgi dgt di- dia dic did die dig dii dio dit doa doc dod doe dog doi doo dot dta dtc dtd dte dtg dti dto dtt eaa eac ead eae eag eai eao eat ec- eca ecc ecd ece ecg eci eco ect ed- eda edc edd ede edg edi edo edt eea eec eed eee eeg eeo eet ega egc egd ege egg egi ego egt eia eic eid eie eig eii eio eit eo- eoa eoc eod eoe eog eoi eoo eot eta etc etd ete etg eti eto ett g-d gaa gac gad gae gag gai gao gat gca gcc gcd gce gcg gci gco gct gda gdc gdd gde gdi gdo gdt ge- gea gec ged gee geg gei geo get gga ggc ggd ggg ggi ggo ggt gia gic gid gie gig gii gio git goa goc god goe gog goi goo got gta gtc gtd gte gtg gti gto gtt i-d ia- iaa iac iad iae iag iai iao iat ica icc icd ice icg ici ico ict ida idc idd ide idg idi ido idt ie- iea iec ied iee ieg iei iet iga igc igd ige igg igi igo igt iia iic iid iie iii iio iit io- ioa ioc iod ioe iog ioi ioo iot ita itc itd ite itg iti ito itt o-i oaa oac oad oae oag oai oao oat oc- oca occ ocd ocg oci oco oct oda odc odd ode odg odi odo odt oea oec oed oee oeg oei oeo oet oga ogc ogd oge ogg ogi ogo ogt oia oic oid oie oii oio oit oo- ooa ooc ood oog ooi ooo oot ot- ota otc otd ote otg oti oto ott taa tac tad tae tag tai tao tat tca tcc tcd tce tcg tci tco tct tda tdc tdd tde tdg tdi tdo tdt te- tea tec ted tee teg tei teo tet tga tgc tge tgg tgi tgo tgt tia tic tid tie tig tii tio tit to- toa toc tod toe tog toi too tot tta ttc ttd tte ttg tti tto ttt