-th b-u bbb bbh bbi bbk bbn bbs bbt bbu bhb bhh bhi bhk bhs bht bhu bi- bib bih bii bik bin bis bit biu bkb bkk bkn bks bkt bnb bni bnk bnn bns bnt bnu bsb bsh bsi bsk bsn bss bst bsu btb bth bti btk btn bts btt btu bub buh bui buk bun bus but buu h-i hbb hbh hbi hbk hbn hbs hbt hbu hhb hhh hhi hhk hhn hhs hht hhu hib hih hii hik hin his hit hiu hkb hkh hki hkk hkn hks hkt hku hnb hnh hnk hnn hns hnt hnu hsb hsh hsi hsk hsn hss hst hsu htb hth hti htk htn hts htt hub huh hui huk hun hus hut huu ibb ibh ibi ibk ibn ibs ibt ibu ihb ihh ihi ihk ihn ihs iht ihu iib iih iii iin iis iit iiu ikb iki ikk iks ikt iku in- inb inh ini ink inn ins int inu is- isb ish isi isk isn iss ist isu itb ith iti itk itn its itt itu iu- iub iui ius iut k-t kbb kbh kbi kbk kbn kbs kbu khh khi khk khn khs khu kib kih kii kik kin kis kit kiu kkb kkh kki kkk kkn kks kkt kku kn- kni knk knn knt knu ksb ksh ksi ksk ksn kss kst ksu ktb kth ktk ktn kts ktt ktu kub kuh kui kuk kun kus kut kuu n-i nbb nbi nbk nbn nbs nbt nbu nhb nhh nhi nhk nhn nhs nht nhu nib nih nii nik nin nis nit niu nki nkk nkn nks nkt nku nnb nnh nni nnk nnn nns nnt nnu nsb nsh nsi nsk nsn nss nst nsu ntb nth nti ntk ntn nts ntt ntu nub nuh nui nuk nun nus nut nuu sbb sbh sbi sbk sbn sbs sbt sbu sh- shb shh shi shk shn shs sht shu sib sih sii sik sin sis sit siu sk- skb skh ski skk sks skt sku snb sni snk snn sns snt snu ss- ssb ssh ssi ssk ssn sss sst ssu stb sth sti stk stn sts stt stu sub suh sui suk sun sus sut suu tbb tbh tbi tbk tbn tbs tbt tbu th- thb thh thi thk thn ths tht thu tib tih tii tik tin tis tit tiu tkb tkk tks tkt tnb tnh tni tnk tnn tns tnt tsb tsh tsi tsk tsn tss tst tsu ttb tth tti ttk ttn tts ttt ttu tub tuh tui tuk tun tus tut tuu ubb ubh ubi ubk ubn ubs ubt ubu uhb uhh uhi uhs uht uhu uib uii uin uis uit uiu ukb uki ukk ukn uku un- unb unh uni unk unn uns unt unu usb ush usi usk usn uss ust usu utb uth uti utk utn uts utt utu uun uus uut uuu