-ic c-- ccc ccd ccg cci ccr ccs cdc cdd cdg cdi cdr cds cgc cgd cgg cgi cgr cgs ci- cic cid cig cii cir cis crc crd crg cri crr crs csc csd csg csi csr css dcc dcd dcg dci dcr dcs ddc ddd ddg ddi ddr dds dgc dgd dgg dgi dgr dgs di- dic did dig dii dir dis drc drd drg dri drr drs dsc dsd dsg dsi dsr dss g-d gcc gcd gcg gci gcr gcs gdc gdd gdi gdr gds ggc ggd ggg ggi ggr ggs gic gid gig gii gir gis grc grd grg gri grr grs gsc gsd gsg gsi gsr gss i-d icc icd icg ici icr ics idc idd idg idi idr ids igc igd igg igi igr igs iic iid iii iir iis ir- irc ird irg iri irr irs is- isc isd isg isi isr iss rcc rcd rcg rci rcr rcs rdc rdd rdg rdi rdr rds rgc rgd rgg rgi rgr rgs ric rid rig rii rir ris rrc rrd rrg rri rrr rrs rsc rsd rsg rsi rsr rss scc scd scg sci scr scs sdc sdd sdg sdi sdr sds sgc sgd sgg sgi sgr sgs sic sid sig sii sir sis sr- src srd srg sri srr srs ss- ssc ssd ssg ssi ssr sss