a-a a-i a-t aaa aaf aai aat aay af- afa aff afi aft afy ai- aia aif aii ait aiy at- ata atf ati att ay- aya ayf ayi ayt faa faf fai fat fay ffa fff ffi fft ffy fia fif fii fit fta ftf fti ftt fty fy- fya fyi i-f ia- iaa iaf iai iat ifa iff ifi ift ify iia iif iii iit ita itf iti itt ity iya iyt iyy taa taf tai tat tay tfa tff tfi tft tia tif tii tit tiy tta ttf tti ttt tty tya tyf tyt yaa yaf yai yat yay yfa yff yft yif yii yit yta ytf ytt yyf yyt yyy