-ic c-- ccc ccd ccg cci cck cco ccs cdc cdd cdg cdi cdk cdo cds cgc cgd cgg cgi cgo cgs ci- cic cid cig cii cik cio cis ckc ckd cki cko cks co- coc cod cog coi cok coo cos csc csd csg csi csk cso css dcc dcd dcg dci dck dco dcs ddc ddd ddg ddi ddk ddo dds dgc dgd dgg dgi dgk dgs di- dic did dig dii dik dio dis dkc dkg dki dkk dko dks doc dod dog doi dok doo dos dsc dsd dsg dsi dsk dso dss g-d gcc gcd gcg gci gck gco gcs gdc gdd gdi gdk gdo gds ggc ggd ggg ggi ggo ggs gic gid gig gii gik gio gis gkd gko gks goc god gog goi gok goo gos gsc gsd gsg gsi gsk gso gss i-d icc icd icg ici ick ico ics idc idd idg idi idk ido ids igc igd igg igi igk igo igs iic iid iii iio iis ikc iki ikk iko iks io- ioc iod iog ioi ioo ios is- isc isd isg isi isk iso iss kcc kcd kcg kci kck kcs kdc kdg kdk kdo kds kgc kgd kgi kgo kgs kic kid kig kii kik kio kis kkc kki kkk kks koc kod kog koi kok koo kos ksc ksd ksg ksi ksk kso kss o-i oc- occ ocd ocg oci ock oco ocs odc odd odg odi odo ods ogc ogd ogg ogi ogo ogs oic oid oii oik oio ois okc okd okg oki okk oko oks oo- ooc ood oog ooi ook ooo oos os- osc osd osg osi osk oso oss scc scd scg sci sck sco scs sdc sdd sdg sdi sdk sdo sds sgc sgd sgg sgi sgk sgo sgs sic sid sig sii sik sio sis sk- skc skd skg ski skk sko sks soc sod sog soi sok soo sos ss- ssc ssd ssg ssi ssk sso sss