-th b-u bbb bbg bbh bbi bbr bbt bbu bgb bgg bgh bgi bgr bgt bgu bhb bhg bhh bhi bhr bht bhu bi- bib big bih bii bir bit biu brb brg brh bri brr brt bru btb btg bth bti btr btt btu bub bug buh bui bur but buu gbg gbh gbi gbr gbt gbu ggb ggg ggh ggi ggr ggt ggu ghb ghg ghh ghi ghr ght gib gig gih gii gir git giu grb grg grh gri grr grt gru gtb gtg gth gti gtr gtt gtu gu- gub gug gui gur gut guu h-i hbb hbg hbh hbi hbr hbt hbu hgb hgg hgh hgi hgr hgt hgu hhb hhg hhh hhi hhr hht hhu hib hig hih hii hir hit hiu hr- hrb hrg hrh hri hrr hrt hru htb htg hth hti htr htt hub hug huh hui hur hut huu ibb ibg ibh ibi ibr ibt ibu igb igg igh igi igr igt igu ihb ihg ihh ihi ihr iht ihu iib iih iii iir iit iiu ir- irb irg iri irr irt iru itb itg ith iti itt itu iu- iub iug iui iur iut rbb rbg rbh rbi rbr rbt rbu rgb rgg rgh rgi rgr rgt rh- rhb rhg rhh rhi rhr rht rhu rib rig rih rii rir rit rrb rrg rrh rri rrr rrt rru rtb rtg rti rtr rtt rtu rub rug ruh rui rur rut ruu tbb tbg tbh tbi tbr tbt tbu tgb tgg tgh tgi tgr tgt tgu th- thb thg thh thi thr tht thu tib tig tih tii tir tit tiu trb trg trh tri trr trt tru ttb ttg tth tti ttr ttt ttu tub tug tuh tui tur tut tuu ubb ubg ubh ubi ubr ubt ubu ugb ugg ugh ugi ugr ugt ugu uhb uhh uhi uhr uht uhu uib uig uii uir uit uiu ur- urb urg uri urr urt uru utb uth uti utr utt utu uug uur uut uuu