c-- ccc cce ccg cco ccs ce- cec cee ceg ceo ces cgc cge cgg cgo cgs co- coc coe cog coo cos csc cse csg cso css ec- ecc ece ecg eco ecs eec eee eeg eeo ees egc ege egg ego egs eo- eoc eoe eog eoo eos es- esc ese esg eso ess gcc gce gcg gco gcs ge- gec gee geg geo ges ggc ggg ggo ggs goc goe gog goo gos gsc gse gsg gso gss oc- occ ocg oco ocs oec oee oeg oeo oes ogc oge ogg ogo ogs oo- ooc oog ooo oos os- osc ose osg oso oss scc sce scg sco scs se- sec see seg seo ses sgc sge sgg sgo sgs soc soe sog soo sos ss- ssc sse ssg sso sss