b-u bbb bbe bbf bbg bbi bbn bbo bbu be- beb bee bef beg bei ben beo beu bfb bfe bff bfg bfi bfn bfo bfu bgb bge bgf bgg bgi bgn bgo bgu bi- bib bie bif big bii bin bio biu bnb bne bnf bng bni bnn bno bnu bob boe bof bog boi bon boo bou bub bue buf bug bui bun buo buu ebb ebe ebf ebg ebi ebn ebo ebu eeb eee eef eeg een eeo ef- efb efe eff efg efi efo egb ege egf egg egi egn ego egu eib eie eif eig eii ein eio eiu en- enb ene enf eng eni enn eno enu eo- eob eoe eof eog eoi eon eoo eou eu- eub eue euf eug eui eun fbb fbe fbf fbg fbi fbn fbo fbu feb fee fef feg fei fen feo feu ffe fff ffg ffi ffn ffo ffu fgb fge fgf fgg fgi fgn fib fie fif fig fii fin fiu fnb fne fnf fng fni fnn fnu fob foe fof fog foi fon foo fou fub fue fuf fug fui fun fuo fuu gbe gbf gbg gbi gbn gbo gbu ge- geb gee gef geg gei gen geo geu gfb gfe gff gfi gfo ggb ggg ggi ggn ggo ggu gib gie gif gig gii gin gio giu gnb gne gnf gni gnn gno gnu gob goe gof gog goi gon goo gou gu- gub gue guf gug gui gun guo guu i-f ibb ibe ibf ibg ibi ibn ibo ibu ie- iee ief ieg iei ien ifb ife iff ifg ifi ifn ifo ifu igb ige igf igg igi ign igo igu iib iie iif iii iin iio iiu in- inb ine inf ing ini inn ino inu io- iob ioe iof iog ioi ion ioo iou iu- iub iue iug iui n-i nbb nbe nbf nbg nbi nbn nbo nbu ne- neb nee nef neg nei nen neo neu nfb nfe nff nfi nfn nfo nfu ngb nge ngf ngg ngi ngn ngo ngu nib nie nif nig nii nin nio niu nnb nne nnf nng nni nnn nno nnu no- nob noe nof nog noi non noo nou nub nue nug nui nun nuo nuu o-i ob- obb obe obf obg obi obn obo obu oeb oee oef oeg oei oen oeo of- ofb ofe off ofg ofi ofn ofo ofu oge ogf ogg ogi ogn ogo oib oie oif oii oin oio oiu on- onb one onf ong oni onn ono onu oo- oob oof oog ooi oon ooo ou- oue ouf oui oun ouo ubb ube ubf ubg ubi ubn ubo ubu ueb uee uef ueg uei uen ufe uff ufg ufi ufn ufo ufu ugb uge ugf ugg ugi ugn ugo ugu uib uie uif uig uii uin uio uiu un- unb une unf ung uni unn uno unu uob uoe uog uon uoo uue uug uun uuu