-ic c-- ccc ccg cci ccn cco ccr ccs cgc cgg cgi cgn cgo cgr cgs ci- cic cig cii cin cio cir cis cn- cnc cng cni cnn cno cnr cns co- coc cog coi con coo cor cos crc crg cri crn cro crr crs csc csg csi csn cso csr css gcc gcg gci gcn gco gcr gcs ggc ggg ggi ggn ggo ggr ggs gic gig gii gin gio gir gis gnc gni gnn gno gnr gns goc gog goi gon goo gor gos grc grg gri grn gro grr grs gsc gsg gsi gsn gso gsr gss icc icg ici icn ico icr ics igc igg igi ign igo igr igs iic iii iin iio iir iis in- inc ing ini inn ino inr ins io- ioc iog ioi ion ioo ior ios ir- irc irg iri irn iro irr irs is- isc isg isi isn iso isr iss n-i ncc ncg nci ncn nco ncr ncs ngc ngg ngi ngn ngo ngs nic nig nii nin nio nir nis nnc nng nni nnn nno nns no- noc nog noi non noo nor nos nrc nrg nri nrn nro nrr nrs nsc nsg nsi nsn nso nsr nss o-i oc- occ ocg oci ocn oco ocr ocs ogc ogg ogi ogn ogo ogs oic oii oin oio oir ois on- onc ong oni onn ono onr ons oo- ooc oog ooi oon ooo oor oos or- orc org ori orn oro orr ors os- osc osg osi osn oso osr oss rcc rcg rci rcn rco rcr rcs rgc rgg rgi rgn rgo rgr rgs ric rig rii rin rio rir ris rnc rng rni rnn rno rnr rns roc rog roi ron roo ror ros rrc rrg rri rrn rrr rrs rsc rsg rsi rsn rso rsr rss scc scg sci scn sco scr scs sgc sgg sgi sgn sgo sgr sgs sic sig sii sin sio sir sis snc sng sni snn sno snr sns soc sog soi son soo sor sos sr- src srg sri srn sro srr srs ss- ssc ssg ssi ssn sso ssr sss