a-a a-c aaa aac aam aao aar aau ac- aca acc acm aco acr acu ama amc amm amo amr amu aoa aoc aom aoo aor aou ar- ara arc arm aro arr aru au- aua auc aum auo aur c-- caa cac cam cao car cau cca ccc ccm cco ccr ccu cma cmc cmm cmo cmr cmu co- coa coc com coo cor cou cra crc crm cro crr cru cua cuc cum cuo cur cuu m-o m-r maa mac mam mao mar mau mc- mca mcc mcm mco mcr mcu mma mmc mmm mmo mmr mmu moa moc mom moo mor mou mra mrc mrm mro mrr mru mua muc mum mur muu oaa oac oam oao oar oau oc- oca occ ocm oco ocr ocu om- oma omc omm omo omr omu oo- ooa ooc oom ooo oor or- ora orc orm oro orr oru ou- oua ouc oum ouo our ra- raa rac ram rao rar rau rca rcc rcm rco rcr rcu rma rmc rmm rmo rmr roa roc rom roo ror rou rra rrc rrm rrr rru rua ruc rum ruo rur ruu ua- uaa uac uam uao uar uau uca ucc ucm uco ucr ucu um- uma umc umm umo umr umu uoa uoc uom uoo uor ur- ura urc urm uro urr uru uua uuc uum uur uuu