b-u bbb bbf bbi bbl bbn bbs bbu bfb bff bfi bfl bfn bfs bfu bi- bib bif bii bil bin bis biu blb blf bli bll bln bls blu bnb bnf bni bnl bnn bns bnu bsb bsf bsi bsl bsn bss bsu bub buf bui bul bun bus buu fbb fbf fbi fbl fbn fbs fbu fff ffi ffl ffn ffs ffu fib fif fii fil fin fis fiu flb flf fli fll fln fls flu fnb fnf fni fnl fnn fns fnu fsb fsf fsi fsl fsn fss fsu fub fuf fui ful fun fus fuu i-f ibb ibf ibi ibl ibn ibs ibu ifb iff ifi ifl ifn ifs ifu iib iif iii iil iin iis iiu il- ilb ilf ili ill iln ils ilu in- inb inf ini inl inn ins inu is- isb isf isi isl isn iss isu iu- iub iui ius lbb lbf lbi lbl lbs lbu lfb lff lfi lfl lfn lfs lfu lib lif lii lil lin lis liu llb llf lli lll lln lls llu lnb lni lnl lnn lns lnu lsb lsf lsi lsl lsn lss lsu lub luf lui lul lun lus luu n-i nbb nbf nbi nbl nbn nbs nbu nfb nff nfi nfl nfn nfs nfu nib nif nii nil nin nis niu nlb nlf nli nll nln nls nlu nnb nnf nni nnl nnn nns nnu nsb nsf nsi nsl nsn nss nsu nub nui nul nun nus nuu sbb sbf sbi sbl sbn sbs sbu sfb sff sfi sfl sfn sfs sfu sib sif sii sil sin sis siu slb slf sli sll sln sls slu snb snf sni snl snn sns snu ss- ssb ssf ssi ssl ssn sss ssu sub suf sui sul sun sus suu ubb ubf ubi ubl ubn ubs ubu uff ufi ufl ufn ufs ufu uib uif uii uil uin uis uiu ulb ulf uli ull uln uls ulu un- unb unf uni unl unn uns unu usb usf usi usl usn uss usu uun uus uuu