b-u bbb bbh bbi bbn bbs bbu bhb bhh bhi bhs bhu bi- bib bih bii bin bis biu bnb bni bnn bns bnu bsb bsh bsi bsn bss bsu bub buh bui bun bus buu h-i hbb hbh hbi hbn hbs hbu hhb hhh hhi hhn hhs hhu hib hih hii hin his hiu hnb hnh hnn hns hnu hsb hsh hsi hsn hss hsu hub huh hui hun hus huu ibb ibh ibi ibn ibs ibu ihb ihh ihi ihn ihs ihu iib iih iii iin iis iiu in- inb inh ini inn ins inu is- isb ish isi isn iss isu iu- iub iui ius n-i nbb nbi nbn nbs nbu nhb nhh nhi nhn nhs nhu nib nih nii nin nis niu nnb nnh nni nnn nns nnu nsb nsh nsi nsn nss nsu nub nuh nui nun nus nuu sbb sbh sbi sbn sbs sbu sh- shb shh shi shn shs shu sib sih sii sin sis siu snb sni snn sns snu ss- ssb ssh ssi ssn sss ssu sub suh sui sun sus suu ubb ubh ubi ubn ubs ubu uhb uhh uhi uhs uhu uib uii uin uis uiu un- unb unh uni unn uns unu usb ush usi usn uss usu uun uus uuu