-ic c-- ccc ccg cci ccm cco ccr ccs cgc cgg cgi cgm cgo cgr cgs ci- cic cig cii cim cio cir cis cmc cmg cmi cmm cmo cmr cms co- coc cog coi com coo cor cos crc crg cri crm cro crr crs csc csg csi csm cso csr css gcc gcg gci gcm gco gcr gcs ggc ggg ggi ggm ggo ggr ggs gic gig gii gim gio gir gis gmc gmg gmi gmm gmo gmr gms goc gog goi gom goo gor gos grc grg gri grm gro grr grs gsc gsg gsi gsm gso gsr gss icc icg ici icm ico icr ics igc igg igi igm igo igr igs iic iii iim iio iir iis im- imc img imi imm imo ims io- ioc iog ioi iom ioo ior ios ir- irc irg iri irm iro irr irs is- isc isg isi ism iso isr iss m-o m-r mc- mcc mcg mci mcm mco mcr mcs mgc mgi mgm mgo mgr mgs mi- mic mig mii mim mio mir mis mmc mmg mmi mmm mmo mmr mms moc mog moi mom moo mor mos mrc mrg mri mrm mro mrr mrs msc msg msi msm mso msr mss o-i oc- occ ocg oci ocm oco ocr ocs ogc ogg ogi ogo ogs oic oii oim oio oir ois om- omc omg omi omm omo omr oms oo- ooc oog ooi oom ooo oor oos or- orc org ori orm oro orr ors os- osc osg osi osm oso osr oss rcc rcg rci rcm rco rcr rcs rgc rgg rgi rgo rgr rgs ric rig rii rim rio rir ris rmc rmg rmi rmm rmo rmr rms roc rog roi rom roo ror ros rrc rrg rri rrm rrr rrs rsc rsg rsi rsm rso rsr rss scc scg sci scm sco scr scs sgc sgg sgi sgm sgo sgr sgs sic sig sii sim sio sir sis smc smg smi smm smo smr sms soc sog soi som soo sor sos sr- src srg sri srm sro srr srs ss- ssc ssg ssi ssm sso ssr sss