c-- ccc cce ccg ccn cco ccs cct ce- cec cee ceg cen ceo ces cet cgc cge cgg cgn cgo cgs cgt cn- cnc cne cng cnn cno cns cnt co- coc coe cog con coo cos cot csc cse csg csn cso css cst ctc cte ctg ctn cto cts ctt ec- ecc ece ecg ecn eco ecs ect eec eee eeg een eeo ees eet egc ege egg egn ego egs egt en- enc ene eng enn eno ens ent eo- eoc eoe eog eon eoo eos eot es- esc ese esg esn eso ess est etc ete etg etn eto ets ett gcc gce gcg gcn gco gcs gct ge- gec gee geg gen geo ges get ggc ggg ggn ggo ggs ggt gnc gne gnn gno gns gnt goc goe gog gon goo gos got gsc gse gsg gsn gso gss gst gtc gte gtg gtn gto gts gtt ncc nce ncg ncn nco ncs nct ne- nec nee neg nen neo nes net ngc nge ngg ngn ngo ngs ngt nnc nne nng nnn nno nns nnt no- noc noe nog non noo nos not nsc nse nsg nsn nso nss nst ntc nte ntg ntn nto nts ntt oc- occ ocg ocn oco ocs oct oec oee oeg oen oeo oes oet ogc oge ogg ogn ogo ogs ogt on- onc one ong onn ono ons ont oo- ooc oog oon ooo oos oot os- osc ose osg osn oso oss ost ot- otc ote otg otn oto ots ott scc sce scg scn sco scs sct se- sec see seg sen seo ses set sgc sge sgg sgn sgo sgs sgt snc sne sng snn sno sns snt soc soe sog son soo sos sot ss- ssc sse ssg ssn sso sss sst stc ste stg stn sto sts stt tcc tce tcg tcn tco tcs tct te- tec tee teg ten teo tes tet tgc tge tgg tgn tgo tgs tgt tnc tne tng tnn tno tns tnt to- toc toe tog ton too tos tot tsc tse tsg tsn tso tss tst ttc tte ttg ttn tto tts ttt