a-a a-c a-z aaa aac aam aau aaz ac- aca acc acm acu acz ama amc amm amu amz au- aua auc aum auz az- aza azm azu azz c-- caa cac cam cau caz cca ccc ccm ccu ccz cma cmc cmm cmu cua cuc cum cuu cuz cz- czc czm maa mac mam mau maz mc- mca mcc mcm mcu mcz mma mmc mmm mmu mmz mua muc mum muu mza mzm ua- uaa uac uam uau uaz uca ucc ucm ucu um- uma umc umm umu uua uuc uum uuu uza uzu zaa zac zam zaz zma zmc zmm zuc zum zuz zzz