fff ffi ffn ffo fft ffy fif fii fin fit fnf fni fnn fnt fof foi fon foo fot foy ftf fti ftn fto ftt fty fy- fyi fyn fyo i-f iff ifi ifn ifo ift ify iif iii iin iio iit in- inf ini inn ino int iny io- iof ioi ion ioo iot itf iti itn ito itt ity iyo iyt iyy n-i nff nfi nfn nfo nft nif nii nin nio nit nnf nni nnn nno nnt no- nof noi non noo not noy ntf nti ntn nto ntt nyf nyn nyo nyt nyy o-i of- off ofi ofn ofo oft oif oii oin oio oit on- onf oni onn ono ont ony oo- oof ooi oon ooo oot ot- otf oti otn oto ott oyi oyo tff tfi tfn tfo tft tif tii tin tio tit tiy tnf tni tnn tno tnt to- tof toi ton too tot toy ttf tti ttn tto ttt tty tyf tyn tyo tyt yff yft yif yii yin yio yit ynn yny yof yoi yon yoo yot yoy ytf ytn yto ytt yyf yyt yyy