b-u bbb bbd bbe bbh bbi bbk bbn bbu bdb bdd bde bdh bdi bdk bdu be- beb bed bee beh bei bek ben beu bhb bhd bhe bhh bhi bhk bhu bi- bib bid bie bih bii bik bin biu bkb bke bkk bkn bnb bnd bne bni bnk bnn bnu bub bud bue buh bui buk bun buu dbb dbd dbe dbh dbi dbk dbn dbu ddb ddd dde ddh ddi ddk ddn ddu de- deb ded dee deh dei dek den deu dh- dhb dhd dhe dhh dhi dhk dhu di- dib did die dih dii dik din diu dkb dke dki dkk dku dnb dnd dne dnh dni dnk dnn dub dud due duh dui duk dun ebb ebd ebe ebh ebi ebk ebn ebu ed- edb edd ede edh edi edk edn edu eeb eed eee eek een ehb ehd ehe ehh ehi ehn ehu eib eid eie eii eik ein eiu ekb ekd eke ekh eki eku en- enb end ene enh eni enk enn enu eu- eub eud eue eui eun h-i hbb hbd hbe hbh hbi hbk hbn hbu hdb hdd hde hdh hdi hdk hdn hdu he- heb hed hee heh hei hek hen heu hhb hhd hhe hhh hhi hhk hhn hhu hib hid hie hih hii hik hin hiu hkb hkd hkh hki hkk hkn hku hnb hnd hne hnh hnk hnn hnu hub hud hue huh hui huk hun huu i-d ibb ibd ibe ibh ibi ibk ibn ibu idb idd ide idh idi idk idn idu ie- ied iee iei iek ien ihb ihd ihe ihh ihi ihk ihn ihu iib iid iie iih iii iin iiu ikb ike iki ikk iku in- inb ind ine inh ini ink inn inu iu- iub iud iue iui kbb kbd kbe kbh kbi kbk kbn kbu kdb kde kdh kdk kdu ke- keb ked kee keh kei kek ken khe khh khi khk khn khu kib kid kie kih kii kik kin kiu kkb kke kkh kki kkk kkn kku kn- knd kne kni knk knn knu kub kud kue kuh kui kuk kun kuu n-i nbb nbd nbe nbi nbk nbn nbu ndb ndd nde ndh ndi ndk ndn ndu ne- neb ned nee neh nei nek nen neu nhb nhd nhe nhh nhi nhk nhn nhu nib nid nie nih nii nik nin niu nke nki nkk nkn nku nnb nne nnh nni nnk nnn nnu nub nud nue nuh nui nuk nun nuu ubb ube ubh ubi ubk ubn ubu udb udd ude udi udk udn udu ueb ued uee ueh uei uen uhb uhd uhe uhh uhi uhu uib uid uie uii uin uiu ukb uke uki ukk ukn uku un- unb und une unh uni unk unn unu uue uun uuu