b-u bbb bbd bbh bbi bbn bbu bdb bdd bdh bdi bdu bhb bhd bhh bhi bhu bi- bib bid bih bii bin biu bnb bnd bni bnn bnu bub bud buh bui bun buu dbb dbd dbh dbi dbn dbu ddb ddd ddh ddi ddn ddu dh- dhb dhd dhh dhi dhu di- dib did dih dii din diu dnb dnd dnh dni dnn dub dud duh dui dun h-i hbb hbd hbh hbi hbn hbu hdb hdd hdh hdi hdn hdu hhb hhd hhh hhi hhn hhu hib hid hih hii hin hiu hnb hnd hnh hnn hnu hub hud huh hui hun huu i-d ibb ibd ibh ibi ibn ibu idb idd idh idi idn idu ihb ihd ihh ihi ihn ihu iib iid iih iii iin iiu in- inb ind inh ini inn inu iu- iub iud iui n-i nbb nbd nbi nbn nbu ndb ndd ndh ndi ndn ndu nhb nhd nhh nhi nhn nhu nib nid nih nii nin niu nnb nnh nni nnn nnu nub nud nuh nui nun nuu ubb ubh ubi ubn ubu udb udd udi udn udu uhb uhd uhh uhi uhu uib uid uii uin uiu un- unb und unh uni unn unu uun uuu