a-a a-b a-i a-z aaa aab aai aan aay aaz ab- aba abb abi abn aby abz ai- aia aib aii ain aiy aiz an- ana anb ani ann any anz ay- aya ayi ayn ayz az- aza azb azi azn azy azz baa bab bai ban bay baz bba bbb bbi bbn bby bi- bia bib bii bin biy biz bna bnb bni bnn bnz by- bya byi byn byz bza bzn bzz ia- iaa iab iai ian iaz iba ibb ibi ibn iby ibz iia iib iii iin in- ina inb ini inn iny iya iyy iza izi izy izz n-i naa nab nai nan nay naz nba nbb nbi nbn nia nib nii nin niz nna nnb nni nnn nnz nya nyn nyy nzb nzi nzz yaa yab yai yan yay yaz ybi yby ybz yii yin yiz yna ynn yny yyb yyy yyz yzb yzy zaa zab zai zan zay zaz zbb zby zia zib zin ziz znn zzy zzz