c-- ccc ccd ccm ccn ccu cdc cdd cdm cdn cdu cmc cmd cmm cmn cmu cn- cnc cnd cnm cnn cnu cuc cud cum cun cuu dcc dcd dcm dcn dcu ddc ddd ddm ddn ddu dmc dmd dmm dmn dmu dnc dnd dnm dnn duc dud dum dun mc- mcc mcd mcm mcn mcu mdc mdd mdm mdn mdu mmc mmd mmm mmn mmu mnc mnm mnn mnu muc mud mum mun muu ncc ncd ncm ncn ncu ndc ndd ndm ndn ndu nmc nmd nmm nmn nmu nnc nnm nnn nnu nuc nud num nun nuu ucc ucd ucm ucn ucu udc udd udm udn udu um- umc umd umm umn umu un- unc und unm unn unu uuc uum uun uuu