a-a a-b a-i a-z aaa aab aai aak aau aaz ab- aba abb abi abk abu abz ai- aia aib aii aik aiu aiz aka akb aki akk aku au- aua aub aui auk auz az- aza azb azi azu azz b-u baa bab bai bak bau baz bba bbb bbi bbk bbu bi- bia bib bii bik biu biz bka bkb bkk bua bub bui buk buu buz bza bzu bzz ia- iaa iab iai iau iaz iba ibb ibi ibk ibu ibz iia iib iii iiu ika ikb iki ikk iku iu- iua iub iui iuz iza izi izu izz k-z ka- kaa kab kai kak kau kaz kba kbb kbi kbk kbu kbz kia kib kii kik kiu kiz kkb kki kkk kku kub kui kuk kuu ua- uaa uab uai uak uau uaz uba ubb ubi ubk ubu uia uib uii uiu uka ukb uki ukk uku ukz uua uuu uza uzb uzi uzu zaa zab zai zak zaz zbb zia zib zik ziz zka zub zui zuk zuz zzz