c-- ccc ccd ccg ccn cco ccr ccs cdc cdd cdg cdn cdo cdr cds cgc cgd cgg cgn cgo cgr cgs cn- cnc cnd cng cnn cno cnr cns co- coc cod cog con coo cor cos crc crd crg crn cro crr crs csc csd csg csn cso csr css dcc dcd dcg dcn dco dcr dcs ddc ddd ddg ddn ddo ddr dds dgc dgd dgg dgn dgr dgs dnc dnd dng dnn dno dnr dns doc dod dog don doo dor dos drc drd drg drn dro drr drs dsc dsd dsg dsn dso dsr dss g-d gcc gcd gcg gcn gco gcr gcs gdc gdd gdn gdo gdr gds ggc ggd ggg ggn ggo ggr ggs gnc gnd gnn gno gnr gns goc god gog gon goo gor gos grc grd grg grn gro grr grs gsc gsd gsg gsn gso gsr gss ncc ncd ncg ncn nco ncr ncs ndc ndd ndg ndn ndo ndr nds ngc ngd ngg ngn ngo ngs nnc nng nnn nno nns no- noc nod nog non noo nor nos nrc nrd nrg nrn nro nrr nrs nsc nsd nsg nsn nso nsr nss oc- occ ocd ocg ocn oco ocr ocs odc odd odg odn odo odr ods ogc ogd ogg ogn ogo ogs on- onc ond ong onn ono onr ons oo- ooc ood oog oon ooo oor oos or- orc ord org orn oro orr ors os- osc osd osg osn oso osr oss rcc rcd rcg rcn rco rcr rcs rdc rdd rdg rdn rdo rdr rds rgc rgd rgg rgn rgo rgr rgs rnc rnd rng rnn rno rnr rns roc rod rog ron roo ror ros rrc rrd rrg rrn rrr rrs rsc rsd rsg rsn rso rsr rss scc scd scg scn sco scr scs sdc sdd sdg sdn sdo sdr sds sgc sgd sgg sgn sgo sgr sgs snc snd sng snn sno snr sns soc sod sog son soo sor sos sr- src srd srg srn sro srr srs ss- ssc ssd ssg ssn sso ssr sss