a-a a-i aaa aaf aai aak aay af- afa aff afi afk afy ai- aia aif aii aik aiy aka aki akk ay- aya ayf ayi ayk faa faf fai fak fay ffa fff ffi ffk ffy fia fif fii fik fka fkf fki fkk fy- fya fyi fyk i-f ia- iaa iaf iai ifa iff ifi ify iia iif iii ika ikf iki ikk iya iyy ka- kaa kaf kai kak kay kfa kff kfi kia kif kii kik kki kkk kky kya yaa yaf yai yak yay yfa yff yif yii yka yki ykk yyf yyy