c-- ccc ccd cce ccg cco cct cdc cdd cde cdg cdo cdt ce- cec ced cee ceg ceo cet cgc cgd cge cgg cgo cgt co- coc cod coe cog coo cot ctc ctd cte ctg cto ctt dcc dcd dce dcg dco dct ddc ddd dde ddg ddo ddt de- dec ded dee deg deo det dgc dgd dge dgg dgt doc dod doe dog doo dot dtc dtd dte dtg dto dtt ec- ecc ecd ece ecg eco ect ed- edc edd ede edg edo edt eec eed eee eeg eeo eet egc egd ege egg ego egt eo- eoc eod eoe eog eoo eot etc etd ete etg eto ett g-d gcc gcd gce gcg gco gct gdc gdd gde gdo gdt ge- gec ged gee geg geo get ggc ggd ggg ggo ggt goc god goe gog goo got gtc gtd gte gtg gto gtt oc- occ ocd ocg oco oct odc odd ode odg odo odt oec oed oee oeg oeo oet ogc ogd oge ogg ogo ogt oo- ooc ood oog ooo oot ot- otc otd ote otg oto ott tcc tcd tce tcg tco tct tdc tdd tde tdg tdo tdt te- tec ted tee teg teo tet tgc tge tgg tgo tgt to- toc tod toe tog too tot ttc ttd tte ttg tto ttt