a-a a-b a-i a-z aaa aab aad aai aay aaz ab- aba abb abd abi aby abz ad- ada adb add adi ady adz ai- aia aib aid aii aiy aiz ay- aya ayd ayi ayz az- aza azb azd azi azy azz baa bab bad bai bay baz bba bbb bbd bbi bby bda bdb bdd bdi bdy bdz bi- bia bib bid bii biy biz by- bya byd byi byz bza bzd bzz daa dab dad dai day daz dba dbb dbd dbi dby dbz dda ddb ddd ddi ddy ddz di- dia dib did dii diy diz dy- dya dyb dyd dyy dza dzb dzd dzi i-d ia- iaa iab iad iai iaz iba ibb ibd ibi iby ibz ida idb idd idi idy iia iib iid iii iya iyy iza izi izy izz yaa yab yad yai yay yaz ybi yby ybz yda ydy yid yii yiz yyb yyy yyz yzb yzy zaa zab zad zai zay zaz zbb zby zia zib zid ziz zzy zzz