c-- ccc cce ccg ccn cco cct ce- cec cee ceg cen ceo cet cgc cge cgg cgn cgo cgt cn- cnc cne cng cnn cno cnt co- coc coe cog con coo cot ctc cte ctg ctn cto ctt ec- ecc ece ecg ecn eco ect eec eee eeg een eeo eet egc ege egg egn ego egt en- enc ene eng enn eno ent eo- eoc eoe eog eon eoo eot etc ete etg etn eto ett gcc gce gcg gcn gco gct ge- gec gee geg gen geo get ggc ggg ggn ggo ggt gnc gne gnn gno gnt goc goe gog gon goo got gtc gte gtg gtn gto gtt ncc nce ncg ncn nco nct ne- nec nee neg nen neo net ngc nge ngg ngn ngo ngt nnc nne nng nnn nno nnt no- noc noe nog non noo not ntc nte ntg ntn nto ntt oc- occ ocg ocn oco oct oec oee oeg oen oeo oet ogc oge ogg ogn ogo ogt on- onc one ong onn ono ont oo- ooc oog oon ooo oot ot- otc ote otg otn oto ott tcc tce tcg tcn tco tct te- tec tee teg ten teo tet tgc tge tgg tgn tgo tgt tnc tne tng tnn tno tnt to- toc toe tog ton too tot ttc tte ttg ttn tto ttt