c-- ccc ccd cck ccn cco ccs ccu cdc cdd cdk cdn cdo cds cdu ckc ckd cko cks cn- cnc cnd cnn cno cns cnu co- coc cod cok con coo cos cou csc csd csk csn cso css csu cuc cud cuk cun cuo cus cuu dcc dcd dck dcn dco dcs dcu ddc ddd ddk ddn ddo dds ddu dkc dkk dko dks dku dnc dnd dnk dnn dno dns doc dod dok don doo dos dou dsc dsd dsk dsn dso dss dsu duc dud duk dun duo dus kcc kcd kck kcn kcs kcu kdc kdk kdo kds kdu kkc kkk kkn kks kku kn- knc knd knk knn kno knu koc kod kok kon koo kos kou ksc ksd ksk ksn kso kss ksu kuc kud kuk kun kus kuu ncc ncd nck ncn nco ncs ncu ndc ndd ndk ndn ndo nds ndu nkc nkk nkn nko nks nku nnc nnk nnn nno nns nnu no- noc nod nok non noo nos nou nsc nsd nsk nsn nso nss nsu nuc nud nuk nun nuo nus nuu oc- occ ocd ock ocn oco ocs ocu odc odd odn odo ods odu okc okd okk oko oks oku on- onc ond onk onn ono ons onu oo- ooc ood ook oon ooo oos os- osc osd osk osn oso oss osu ou- ouc oud ouk oun ouo ous scc scd sck scn sco scs scu sdc sdd sdk sdn sdo sds sdu sk- skc skd skk sko sks sku snc snd snk snn sno sns snu soc sod sok son soo sos sou ss- ssc ssd ssk ssn sso sss ssu suc sud suk sun suo sus suu ucc ucd uck ucn uco ucs ucu udc udd udk udn udo uds udu ukc ukk ukn uku un- unc und unk unn uno uns unu uoc uod uok uon uoo uos usc usd usk usn uso uss usu uuc uun uus uuu