-th b-u bbb bbf bbg bbh bbi bbl bbt bbu bfb bff bfg bfh bfi bfl bft bfu bgb bgf bgg bgh bgi bgl bgt bgu bhb bhf bhg bhh bhi bhl bht bhu bi- bib bif big bih bii bil bit biu blb blf blg blh bli bll blt blu btb btf btg bth bti btl btt btu bub buf bug buh bui bul but buu fbb fbf fbg fbh fbi fbl fbt fbu fff ffg ffh ffi ffl fft ffu fgb fgf fgg fgh fgi fgl fgt fhb fhf fhg fhh fhi fhl fib fif fig fih fii fil fit fiu flb flf flg fli fll flt flu ftb ftf ftg fth fti ftl ftt ftu fub fuf fug fui ful fut fuu gbf gbg gbh gbi gbl gbt gbu gfb gff gfh gfi gfl gft ggb ggg ggh ggi ggt ggu ghb ghg ghh ghi ghl ght gib gif gig gih gii gil git giu glb glf glg glh gli gll glt glu gtb gtf gtg gth gti gtl gtt gtu gu- gub guf gug gui gul gut guu h-i hbb hbf hbg hbh hbi hbl hbt hbu hfb hff hfg hfh hfi hfl hft hfu hgb hgf hgg hgh hgi hgl hgt hgu hhb hhf hhg hhh hhi hhl hht hhu hib hif hig hih hii hil hit hiu hlb hlf hlg hlh hli hll hlt hlu htb htf htg hth hti htl htt hub huf hug huh hui hul hut huu i-f ibb ibf ibg ibh ibi ibl ibt ibu ifb iff ifg ifi ifl ift ifu igb igf igg igh igi igl igt igu ihb ihf ihg ihh ihi ihl iht ihu iib iif iih iii iil iit iiu il- ilb ilf ilg ilh ili ill ilt ilu itb itf itg ith iti itl itt itu iu- iub iug iui iut lbb lbf lbg lbh lbi lbl lbt lbu lfb lff lfg lfh lfi lfl lft lfu lgb lgf lgg lgh lgi lgl lgt lgu lhb lhf lhh lhi lht lhu lib lif lig lih lii lil lit liu llb llf llg lli lll llt llu ltb ltf ltg lth lti ltl ltt ltu lub luf lug luh lui lul lut luu tbb tbf tbg tbh tbi tbl tbt tbu tfb tff tfg tfh tfi tfl tft tfu tgb tgf tgg tgh tgi tgl tgt tgu th- thb thf thg thh thi thl tht thu tib tif tig tih tii til tit tiu tlf tlg tlh tli tll tlt tlu ttb ttf ttg tth tti ttl ttt ttu tub tuf tug tuh tui tul tut tuu ubb ubf ubg ubh ubi ubl ubt ubu uff ufg ufh ufi ufl uft ufu ugb ugf ugg ugh ugi ugl ugt ugu uhb uhf uhh uhi uhl uht uhu uib uif uig uii uil uit uiu ulb ulf ulg uli ull ult ulu utb utf uth uti utl utt utu uug uut uuu