c-- ccc ccd cck ccm ccu cdc cdd cdk cdm cdu ckc ckd ckm cmc cmd cmk cmm cmu cuc cud cuk cum cuu dcc dcd dck dcm dcu ddc ddd ddk ddm ddu dkc dkk dkm dku dmc dmd dmk dmm dmu duc dud duk dum kcc kcd kck kcm kcu kdc kdk kdm kdu kkc kkk kkm kku kmc kmd kmk kmm kmu kuc kud kuk kum kuu mc- mcc mcd mck mcm mcu mdc mdd mdk mdm mdu mkc mkd mkk mkm mku mmc mmd mmk mmm mmu muc mud muk mum muu ucc ucd uck ucm ucu udc udd udk udm udu ukc ukk uku um- umc umd umm umu uuc uum uuu