b-u bbb bbd bbi bbl bbn bbs bbu bdb bdd bdi bdl bds bdu bi- bib bid bii bil bin bis biu blb bld bli bll bln bls blu bnb bnd bni bnl bnn bns bnu bsb bsd bsi bsl bsn bss bsu bub bud bui bul bun bus buu dbb dbd dbi dbl dbn dbs dbu ddb ddd ddi ddl ddn dds ddu di- dib did dii dil din dis diu dl- dlb dld dli dll dls dlu dnb dnd dni dnl dnn dns dsb dsd dsi dsl dsn dss dsu dub dud dui dul dun dus i-d ibb ibd ibi ibl ibn ibs ibu idb idd idi idl idn ids idu iib iid iii iil iin iis iiu il- ilb ild ili ill iln ils ilu in- inb ind ini inl inn ins inu is- isb isd isi isl isn iss isu iu- iub iud iui ius lbb lbd lbi lbl lbs lbu ldb ldd ldi ldl ldn lds ldu lib lid lii lil lin lis liu llb lld lli lll lln lls llu lnb lnd lni lnl lnn lns lnu lsb lsd lsi lsl lsn lss lsu lub lud lui lul lun lus luu n-i nbb nbd nbi nbl nbn nbs nbu ndb ndd ndi ndl ndn nds ndu nib nid nii nil nin nis niu nlb nld nli nll nln nls nlu nnb nni nnl nnn nns nnu nsb nsd nsi nsl nsn nss nsu nub nud nui nul nun nus nuu sbb sbd sbi sbl sbn sbs sbu sdb sdd sdi sdl sdn sds sdu sib sid sii sil sin sis siu slb sld sli sll sln sls slu snb snd sni snl snn sns snu ss- ssb ssd ssi ssl ssn sss ssu sub sud sui sul sun sus suu ubb ubi ubl ubn ubs ubu udb udd udi udl udn uds udu uib uid uii uil uin uis uiu ulb uld uli ull uln uls ulu un- unb und uni unl unn uns unu usb usd usi usl usn uss usu uun uus uuu