-up c-- ccc ccd cck cco ccp ccu cdc cdd cdk cdo cdp cdu cdy ckc ckd cko cky co- coc cod cok coo cop cou coy cpc cpd cpk cpo cpp cpu cuc cud cuk cuo cup cuu cuy cyc cyd cyk cyo cyp dcc dcd dck dco dcp dcu ddc ddd ddk ddo ddp ddu ddy dkc dkk dko dkp dku doc dod dok doo dop dou doy dpc dpd dpk dpo dpp dpu duc dud duk duo dup duy dy- dyc dyd dyk dyo dyp dyu dyy kcc kcd kck kcp kcu kdc kdk kdo kdp kdu kdy kkc kkk kkp kku kky koc kod kok koo kop kou koy kpc kpd kpk kpo kpp kpu kuc kud kuk kup kuu kuy kyc kyd kyo kyp kyu oc- occ ocd ock oco ocp ocu odc odd odo odp odu okc okd okk oko okp oku oo- ooc ood ook ooo oop op- opc opd opk opo opp opy ou- ouc oud ouk ouo oup oyd oyo p-p pcc pcd pck pco pcp pcu pdc pdd pdk pdo pdp pdu pkc pkd pko pkp pku pky poc pod pok poo pop pou poy ppc ppd ppk ppo ppp ppu puc pud puk pup puu puy py- pyc pyd pyk pyo pyu ucc ucd uck uco ucp ucu udc udd udk udo udp udu ukc ukk ukp uku uoc uod uok uoo uop up- upc upd upk upo upp upu uuc uuu uyc uyo uyu ycc ycd yco ycp ycu ycy ydo ydy ykk yoc yod yok yoo yop you yoy ypd ypo ypu yud yuk yuo yup yuu yuy yyc yyu yyy