-ic c-- ccc ccg cci cco ccs cgc cgg cgi cgo cgs ci- cic cig cii cio cis co- coc cog coi coo cos csc csg csi cso css gcc gcg gci gco gcs ggc ggg ggi ggo ggs gic gig gii gio gis goc gog goi goo gos gsc gsg gsi gso gss icc icg ici ico ics igc igg igi igo igs iic iii iio iis io- ioc iog ioi ioo ios is- isc isg isi iso iss o-i oc- occ ocg oci oco ocs ogc ogg ogi ogo ogs oic oii oio ois oo- ooc oog ooi ooo oos os- osc osg osi oso oss scc scg sci sco scs sgc sgg sgi sgo sgs sic sig sii sio sis soc sog soi soo sos ss- ssc ssg ssi sso sss