a-a a-i aaa aad aaf aai aak aay ad- ada add adf adi adk ady af- afa afd aff afi afk afy ai- aia aid aif aii aik aiy aka akd aki akk ay- aya ayd ayf ayi ayk daa dad daf dai dak day dda ddd ddf ddi ddk ddy dfa dfd dff dfi dfk di- dia did dif dii dik diy dka dki dkk dy- dya dyd dyk dyy faa fad faf fai fak fay fda fdd fdf fdi fdk ffa ffd fff ffi ffk ffy fia fid fif fii fik fka fkf fki fkk fy- fya fyi fyk i-d i-f ia- iaa iad iaf iai ida idd idf idi idk idy ifa ifd iff ifi ify iia iid iif iii ika ikf iki ikk iya iyy ka- kaa kad kaf kai kak kay kda kdf kdk kdy kfa kfd kff kfi kia kid kif kii kik kki kkk kky kya kyd yaa yad yaf yai yak yay yda ydy yfa yfd yff yid yif yii yka yki ykk yyf yyy