bbb bbf bbg bbi bbn bbo bby bfb bff bfg bfi bfn bfo bfy bgb bgf bgg bgi bgn bgo bi- bib bif big bii bin bio biy bnb bnf bng bni bnn bno bob bof bog boi bon boo boy by- byf byg byi byn byo fbb fbf fbg fbi fbn fbo fff ffg ffi ffn ffo ffy fgb fgf fgg fgi fgn fib fif fig fii fin fnb fnf fng fni fnn fob fof fog foi fon foo foy fy- fyb fyi fyn fyo gbf gbg gbi gbn gbo gby gfb gff gfi gfo gfy ggb ggg ggi ggn ggo gib gif gig gii gin gio giy gnb gnf gni gnn gno gob gof gog goi gon goo goy gy- gyb gyf gyn gyo i-f ibb ibf ibg ibi ibn ibo iby ifb iff ifg ifi ifn ifo ify igb igf igg igi ign igo igy iib iif iii iin iio in- inb inf ing ini inn ino iny io- iob iof iog ioi ion ioo iyo iyy n-i nbb nbf nbg nbi nbn nbo nfb nff nfi nfn nfo ngb ngf ngg ngi ngn ngo nib nif nig nii nin nio nnb nnf nng nni nnn nno no- nob nof nog noi non noo noy nyf nyg nyn nyo nyy o-i ob- obb obf obg obi obn obo oby of- ofb off ofg ofi ofn ofo ogf ogg ogi ogn ogo ogy oib oif oii oin oio on- onb onf ong oni onn ono ony oo- oob oof oog ooi oon ooo oyi oyo ybf ybg ybi yby yff ygo yif yig yii yin yio yng ynn yny yob yof yog yoi yon yoo yoy yyb yyf yyg yyy