a-a a-b a-i a-t a-z aaa aab aai aak aat aay aaz ab- aba abb abi abk abt aby abz ai- aia aib aii aik ait aiy aiz aka akb aki akk at- ata atb ati att atz ay- aya ayi ayk ayt ayz az- aza azb azi azt azy azz baa bab bai bak bat bay baz bba bbb bbi bbk bbt bby bi- bia bib bii bik bit biy biz bka bkb bkk bkt bta btb bti btk btt bty btz by- bya byi byk byt byz bza bzz ia- iaa iab iai iat iaz iba ibb ibi ibk ibt iby ibz iia iib iii iit ika ikb iki ikk ikt ita itb iti itk itt ity itz iya iyt iyy iza izi izy izz k-t k-z ka- kaa kab kai kak kat kay kaz kba kbb kbi kbk kbz kia kib kii kik kit kiz kkb kki kkk kkt kky kta ktb ktk ktt kya kyt kyz kzy taa tab tai tak tat tay taz tba tbb tbi tbk tbt tbz tia tib tii tik tit tiy tiz tka tkb tkk tkt tky tkz tta ttb tti ttk ttt tty tya tyt tza yaa yab yai yak yat yay yaz ybi yby ybz yii yit yiz yka yki ykk yta ytk ytt yyb yyt yyy yyz yzb yzy zaa zab zai zak zat zay zaz zbb zbt zby zia zib zik zit ziz zka zta zzt zzy zzz