c-- ccc cce ccg ccm cco cct ce- cec cee ceg cem ceo cet cgc cge cgg cgm cgo cgt cmc cme cmg cmm cmo cmt co- coc coe cog com coo cot ctc cte ctg ctm cto ctt ec- ecc ece ecg ecm eco ect eec eee eeg eem eeo eet egc ege egg egm ego egt em- emc eme emg emm emo emt eo- eoc eoe eog eom eoo eot etc ete etg etm eto ett gcc gce gcg gcm gco gct ge- gec gee geg gem geo get ggc ggg ggm ggo ggt gmc gme gmg gmm gmo gmt goc goe gog gom goo got gtc gte gtg gtm gto gtt m-o mc- mcc mce mcg mcm mco mct mec mee meg mem meo met mgc mge mgm mgo mgt mmc mme mmg mmm mmo mmt moc moe mog mom moo mot mtc mte mtg mtm mto mtt oc- occ ocg ocm oco oct oec oee oeg oem oeo oet ogc oge ogg ogo ogt om- omc ome omg omm omo omt oo- ooc oog oom ooo oot ot- otc ote otg otm oto ott tcc tce tcg tcm tco tct te- tec tee teg tem teo tet tgc tge tgg tgm tgo tgt tmc tme tmg tmm tmo tmt to- toc toe tog tom too tot ttc tte ttg ttm tto ttt