c-- ccc ccd ccn cco ccr ccs ccu cdc cdd cdn cdo cdr cds cdu cn- cnc cnd cnn cno cnr cns cnu co- coc cod con coo cor cos cou crc crd crn cro crr crs cru csc csd csn cso csr css csu cuc cud cun cuo cur cus cuu dcc dcd dcn dco dcr dcs dcu ddc ddd ddn ddo ddr dds ddu dnc dnd dnn dno dnr dns doc dod don doo dor dos dou drc drd drn dro drr drs dru dsc dsd dsn dso dsr dss dsu duc dud dun duo dur dus ncc ncd ncn nco ncr ncs ncu ndc ndd ndn ndo ndr nds ndu nnc nnn nno nns nnu no- noc nod non noo nor nos nou nrc nrd nrn nro nrr nrs nru nsc nsd nsn nso nsr nss nsu nuc nud nun nuo nur nus nuu oc- occ ocd ocn oco ocr ocs ocu odc odd odn odo odr ods odu on- onc ond onn ono onr ons onu oo- ooc ood oon ooo oor oos or- orc ord orn oro orr ors oru os- osc osd osn oso osr oss osu ou- ouc oud oun ouo our ous rcc rcd rcn rco rcr rcs rcu rdc rdd rdn rdo rdr rds rdu rnc rnd rnn rno rnr rns rnu roc rod ron roo ror ros rou rrc rrd rrn rrr rrs rru rsc rsd rsn rso rsr rss rsu ruc rud run ruo rur rus ruu scc scd scn sco scr scs scu sdc sdd sdn sdo sdr sds sdu snc snd snn sno snr sns snu soc sod son soo sor sos sou sr- src srd srn sro srr srs ss- ssc ssd ssn sso ssr sss ssu suc sud sun suo sur sus suu ucc ucd ucn uco ucr ucs ucu udc udd udn udo udr uds udu un- unc und unn uno unr uns unu uoc uod uon uoo uor uos ur- urc urd urn uro urr urs uru usc usd usn uso usr uss usu uuc uun uur uus uuu