bbb bbf bbg bbi bbn bbo bbt bfb bff bfg bfi bfn bfo bft bgb bgf bgg bgi bgn bgo bgt bi- bib bif big bii bin bio bit bnb bnf bng bni bnn bno bnt bob bof bog boi bon boo bot btb btf btg bti btn bto btt fbb fbf fbg fbi fbn fbo fbt fff ffg ffi ffn ffo fft fgb fgf fgg fgi fgn fgt fib fif fig fii fin fit fnb fnf fng fni fnn fnt fob fof fog foi fon foo fot ftb ftf ftg fti ftn fto ftt gbf gbg gbi gbn gbo gbt gfb gff gfi gfo gft ggb ggg ggi ggn ggo ggt gib gif gig gii gin gio git gnb gnf gni gnn gno gnt gob gof gog goi gon goo got gtb gtf gtg gti gtn gto gtt i-f ibb ibf ibg ibi ibn ibo ibt ifb iff ifg ifi ifn ifo ift igb igf igg igi ign igo igt iib iif iii iin iio iit in- inb inf ing ini inn ino int io- iob iof iog ioi ion ioo iot itb itf itg iti itn ito itt n-i nbb nbf nbg nbi nbn nbo nbt nfb nff nfi nfn nfo nft ngb ngf ngg ngi ngn ngo ngt nib nif nig nii nin nio nit nnb nnf nng nni nnn nno nnt no- nob nof nog noi non noo not ntb ntf ntg nti ntn nto ntt o-i ob- obb obf obg obi obn obo obt of- ofb off ofg ofi ofn ofo oft ogf ogg ogi ogn ogo ogt oib oif oii oin oio oit on- onb onf ong oni onn ono ont oo- oob oof oog ooi oon ooo oot ot- otb otf otg oti otn oto ott tbb tbf tbg tbi tbn tbo tbt tfb tff tfg tfi tfn tfo tft tgb tgf tgg tgi tgn tgo tgt tib tif tig tii tin tio tit tnb tnf tng tni tnn tno tnt to- tob tof tog toi ton too tot ttb ttf ttg tti ttn tto ttt