a-a a-b a-i a-z aaa aab aai aam aau aaz ab- aba abb abi abm abu abz ai- aia aib aii aim aiu aiz ama amb ami amm amu amz au- aua aub aui aum auz az- aza azb azi azm azu azz b-u baa bab bai bam bau baz bba bbb bbi bbm bbu bi- bia bib bii bim biu biz bma bmb bmi bmm bmu bmz bua bub bui bum buu buz bza bzu bzz ia- iaa iab iai iam iau iaz iba ibb ibi ibm ibu ibz iia iib iii iim iiu im- ima imb imi imm imu imz iu- iua iub iui ium iuz iza izi izm izu izz maa mab mai mam mau maz mba mbb mbi mbm mbu mi- mia mib mii mim miu miz mma mmb mmi mmm mmu mmz mua mub mui mum muu mza mzb mzi mzm ua- uaa uab uai uam uau uaz uba ubb ubi ubu uia uib uii uim uiu um- uma umb umi umm umu uua uum uuu uza uzb uzi uzu zaa zab zai zam zaz zbb zbm zia zib zim ziz zma zmb zmm zub zui zum zuz zzz