c-- ccc ccm ccn ccr ccu cmc cmm cmn cmr cmu cn- cnc cnm cnn cnr cnu crc crm crn crr cru cuc cum cun cur cuu m-r mc- mcc mcm mcn mcr mcu mmc mmm mmn mmr mmu mnc mnm mnn mnr mnu mrc mrm mrn mrr mru muc mum mun mur muu ncc ncm ncn ncr ncu nmc nmm nmn nmr nmu nnc nnm nnn nnu nrc nrm nrn nrr nru nuc num nun nur nuu rcc rcm rcn rcr rcu rmc rmm rmn rmr rnc rnm rnn rnr rnu rrc rrm rrn rrr rru ruc rum run rur ruu ucc ucm ucn ucr ucu um- umc umm umn umr umu un- unc unm unn unr unu ur- urc urm urn urr uru uuc uum uun uur uuu