c-- ccc cce ccg cco cct ce- cec cee ceg ceo cet cgc cge cgg cgo cgt co- coc coe cog coo cot ctc cte ctg cto ctt ec- ecc ece ecg eco ect eec eee eeg eeo eet egc ege egg ego egt eo- eoc eoe eog eoo eot etc ete etg eto ett gcc gce gcg gco gct ge- gec gee geg geo get ggc ggg ggo ggt goc goe gog goo got gtc gte gtg gto gtt oc- occ ocg oco oct oec oee oeg oeo oet ogc oge ogg ogo ogt oo- ooc oog ooo oot ot- otc ote otg oto ott tcc tce tcg tco tct te- tec tee teg teo tet tgc tge tgg tgo tgt to- toc toe tog too tot ttc tte ttg tto ttt