b-u bbb bbi bbk bbn bbr bbt bbu bby bi- bib bii bik bin bir bit biu biy bkb bkk bkn bkr bkt bnb bni bnk bnn bnr bnt bnu brb bri brk brn brr brt bru bry btb bti btk btn btr btt btu bty bub bui buk bun bur but buu buy by- byi byk byn byr byt byu ibb ibi ibk ibn ibr ibt ibu iby iib iii iin iir iit iiu ikb iki ikk ikr ikt iku in- inb ini ink inn inr int inu iny ir- irb iri irk irn irr irt iru iry itb iti itk itn itt itu ity iu- iub iui iur iut iyr iyt iyy k-t kbb kbi kbk kbn kbr kbu kib kii kik kin kir kit kiu kkb kki kkk kkn kkr kkt kku kky kn- kni knk knn knr knt knu kri krk krn krr krt kru kry ktb ktk ktn ktr ktt ktu kub kui kuk kun kur kut kuu kuy kyn kyr kyt kyu n-i nbb nbi nbk nbn nbr nbt nbu nib nii nik nin nir nit niu nki nkk nkn nkr nkt nku nky nnb nni nnk nnn nnt nnu nrb nri nrk nrn nrr nrt nru nry ntb nti ntk ntn ntr ntt ntu nub nui nuk nun nur nut nuu nuy nyk nyn nyt nyu nyy rbb rbi rbk rbn rbr rbt rbu rib rii rik rin rir rit riy rkb rkk rkt rku rky rnb rni rnn rnr rnt rnu rny rrb rri rrk rrn rrr rrt rru rtb rti rtk rtn rtr rtt rtu rty rub rui ruk run rur rut ruu ruy ry- ryk ryn ryr ryu ryy tbb tbi tbk tbn tbr tbt tbu tib tii tik tin tir tit tiu tiy tkb tkk tkr tkt tky tnb tni tnk tnn tnr tnt trb tri trk trn trr trt tru try ttb tti ttk ttn ttr ttt ttu tty tub tui tuk tun tur tut tuu tuy tyn tyr tyt ubb ubi ubk ubn ubr ubt ubu uby uib uii uin uir uit uiu ukb uki ukk ukn ukr uku un- unb uni unk unn unr unt unu uny ur- urb uri urk urn urr urt uru ury utb uti utk utn utr utt utu uty uun uur uut uuu uyi uyu ybi ybr yby yii yin yir yit yki ykk ykn ynk ynn ynu yny yrn yrt yru ytk ytn ytr ytt ytu yui yuk yun yur yut yuu yuy yyb yyt yyu yyy