c-- ccc ccd cck ccn ccs ccu cdc cdd cdk cdn cds cdu ckc ckd cks cn- cnc cnd cnn cns cnu csc csd csk csn css csu cuc cud cuk cun cus cuu dcc dcd dck dcn dcs dcu ddc ddd ddk ddn dds ddu dkc dkk dks dku dnc dnd dnk dnn dns dsc dsd dsk dsn dss dsu duc dud duk dun dus kcc kcd kck kcn kcs kcu kdc kdk kds kdu kkc kkk kkn kks kku kn- knc knd knk knn knu ksc ksd ksk ksn kss ksu kuc kud kuk kun kus kuu ncc ncd nck ncn ncs ncu ndc ndd ndk ndn nds ndu nkc nkk nkn nks nku nnc nnk nnn nns nnu nsc nsd nsk nsn nss nsu nuc nud nuk nun nus nuu scc scd sck scn scs scu sdc sdd sdk sdn sds sdu sk- skc skd skk sks sku snc snd snk snn sns snu ss- ssc ssd ssk ssn sss ssu suc sud suk sun sus suu ucc ucd uck ucn ucs ucu udc udd udk udn uds udu ukc ukk ukn uku un- unc und unk unn uns unu usc usd usk usn uss usu uuc uun uus uuu