bbbb bbbs bbdd bbfn bblb bbls bd-r bdls bdsd bffl bffs bfsr bfts bftt blbt bldr blls blss blst blts bnrr bnss brds brdt brls brns brrr brrs brsb brsr brst bsbd bsdl bsff bsfs bsnd bsns bsrd bssd bsts btdt btrt btss bttb dbfs dbls dbnl dbrn dbrs dbss dbtt dddd ddss ddts dfds dfdt dfrf dftr dfts dlbd dlrs dlst dntt drrs dsdr dsls dsrr dssn dsst dstn dsts dtnb dtrl dtss fbrs fbsd fdlr fdst fdtl ffff ffrr ffss fftf fldr flnb flts fndd fndn fndr fnrs fntb frns frsb frst fsln fssf ft-l ftlb ftrs ftsr lbds lblr lbrs lbrt ldls ldrs lfrd lfts llbs lldb llds llll lndn lnfs lnts lrdd lrds lrrr lrst lrts ls-r lsds lssr lsts ltbf ltbl ltds ltns ltnt ltrs ltsr lttr nbfl nddb ndls ndnt ndrf ndsf ndsl ndss nfff nfld nfrs nfsr nlls nlrb nndb nnls nnnn nnsl nnss nntn nrds nrlb nrrd nrrl nrtl nrts nsdf nsdl nsds nsdt nsfs nslr nsls nsnr nsrd nsrl nssb nssf nssr nsss nstd nstl nsts ntds ntfl ntfs ntnd ntrl ntsb ntsf ntss nttr rbbb rbbr rbbs rbds rbsd rbsl rbss rbst rfds rffl rlds rldt rlls rnbr rndf rnds rnld rnnt rntd rrrr rsdd rsdl rsds rsnn rsnr rssl rsts rtbf rtdt rtfb rtls rtlt rtnd rtns rtss rtts sbbs sbds sbsd sbst sbtn sdds sdls sdlt sdrs sdsf sdsl sdss sfls sfnb sfnt sfss sfts slds slft slln slrn slrs slst slts snlf snns snrs snsd sntr srnn srsd srtr ssbn ssbr ssdd ssdf ssfl sslt ssns ssrl ssrs sssb sssf ssss sstb sstd sstl ssts stbd stbs stds stfn stld stln stlt stnd stnn stnr stns strd strn strs stsf stss sttd sttr tbbs tbnf tbrb tbst tddb tdff tdls tdss tfrs tfsd tfss tldr tlrs tndd tndf tnfl tnts trfd trfr trsd trst trtr tsbd tsdb tsfl tssf tssr tsst tsts ttbb ttff ttfn ttss tttt