-up b-p b-u bbb bbi bbl bbp bbr bbs bbt bbu bi- bib bii bil bip bir bis bit biu blb bli bll blp blr bls blt blu bpb bpi bpl bpp bpr bps bpt bpu brb bri brl brp brr brs brt bru bsb bsi bsl bsp bsr bss bst bsu btb bti btl btp btr bts btt btu bub bui bul bup bur bus but buu ibb ibi ibl ibp ibr ibs ibt ibu iib iii iil iip iir iis iit iiu il- ilb ili ill ilp ilr ils ilt ilu ipb ipi ipl ipp ipr ips ipt ipu ir- irb iri irl irp irr irs irt iru is- isb isi isl isp isr iss ist isu itb iti itl itp its itt itu iu- iub iui iup iur ius iut l-p lbb lbi lbl lbp lbr lbs lbt lbu lib lii lil lip lir lis lit liu llb lli lll llp llr lls llt llu lpb lpi lpl lpp lpr lps lpt lpu lrb lri lrp lrr lrs lrt lru lsb lsi lsl lsp lsr lss lst lsu ltb lti ltl ltp ltr lts ltt ltu lub lui lul lup lur lus lut luu p-p pbb pbi pbl pbp pbr pbs pbt pbu pib pii pil pip pir pis pit piu plb pli pll plp plr pls plt plu ppb ppi ppl ppp ppr pps ppt ppu prb pri prl prp prr prs prt pru ps- psb psi psl psp psr pss pst psu pt- ptb pti ptl ptp ptr pts ptt ptu pub pui pul pup pur pus put puu rbb rbi rbl rbp rbr rbs rbt rbu rib rii ril rip rir ris rit rli rll rlp rlr rls rlt rlu rpb rpi rpl rpp rpr rps rpt rpu rrb rri rrl rrp rrr rrs rrt rru rsb rsi rsl rsp rsr rss rst rsu rtb rti rtl rtp rtr rts rtt rtu rub rui rup rur rus rut ruu sbb sbi sbl sbp sbr sbs sbt sbu sib sii sil sip sir sis sit siu slb sli sll slp slr sls slt slu spb spi spl spp spr sps spt spu sr- srb sri srl srp srr srs srt ss- ssb ssi ssl ssp ssr sss sst ssu stb sti stl stp str sts stt stu sub sui sul sup sur sus sut suu tbb tbi tbl tbp tbr tbs tbt tbu tib tii til tip tir tis tit tiu tli tll tlp tlr tls tlt tlu tpb tpi tpl tpp tpr tps tpt tpu trb tri trl trp trr trs trt tru tsb tsi tsl tsp tsr tss tst tsu ttb tti ttl ttp ttr tts ttt ttu tub tui tul tup tur tus tut tuu ubb ubi ubl ubp ubr ubs ubt ubu uib uii uil uip uir uis uit uiu ulb uli ull ulp ulr uls ult ulu up- upb upi upp upr ups upt upu ur- urb uri url urp urr urs urt uru usb usi usl usp usr uss ust usu utb uti utl utp utr uts utt utu uur uus uut uuu

bbbb bbbs bblb bbls bbpr bibb bibi bibl bibs biis bili bill bils bilt bilu bipp bips bipu birb biri birl birr birs birt biru bis- bisl bisp biss bist bisu bits bitt bitu blbt blip blir blis blit blls blsp blss blst blts blub blup blur blus blut bpsu bpti bril bris brit brlp brls brrr brrs brsb brsr brst brup brus brut bspp bspr bsts bsup btbp btlp btps btrt btss bttb btus bubb bubi bubs bubu buir buis buit buiu bulb buli bull buls bult bulu bups bur- burb buri burl burp burr burs burt buru busi buss bust busu but- buti buts butt buus ibis ibri ibss ibtb ibtl ibts ibus iiii iiis iiit iirs iisi iisp iisr iist iisu iitr iitt ilir ilis ilit ill- illi illp ills illt ilpr ilts ilus ilut ipil ippr ipri ipsi ipsp ipss ipts ipur ipus iput irbp iri- iril irip iris irlb irps irri irrs irsp irti irtp irts irul irus isbl isbt isil isis isit isls ispr isps isri isrp issi issp issr isss issu isti istp istr ists isup isus itbs itil itis itll itri itrs itsi itsp itsu itup itur iuiu iupp iuss iust lblr lbrs lbrt libr libs libu liii liir liis lilb lili lill lils lilt lilu lip- lipb lipi lipl lipp lips lipu liri lirl lirp lirr lirs lirt liru lisi lisp liss list lisu litb liti litl litr lits litt litu lius liut llbs llll llps lppl lprp lpss lptb lrps lrpu lrrr lrst lrts ls-r lsbu lspl lspr lssp lssr lsts ltbl ltib ltps ltrs ltsi ltsp ltsr lttr lubs luis luit luli lull lulu lupi lupu luri lurs lurt lusi luss lust luti luts luup pbil pblu pbrs pbsp pibb pibi piip pil- pili pill pils pilt pilu pipi pipp pips piri pirl pirr pirs piru pisi piss pist pisu piti pitr pits pitt pitu pius plbr plib plip plis plit plpp plri plsi plss pltt plup plur plus ppib ppli pppp ppps ppru ppss ppts pptt ppur prbs pri- prii pris prlr prls prps prri prrs prsi prsl prss prti prtp prtr prus prut pruu psbr psbt psil psip psis pspi pspp pspr psps psrp psst psts pstu ptbl ptui publ pubs pubu puir puis puit puiu puli pull pulp puls pult pulu pupi pupl pups pupu pur- purb puri purl purp purr purs puru pusi puss pust put- puti puts putt putu rbbb rbbr rbbs rbis rbsl rbsp rbss rbst rib- ribs ribu riis rill rilp rilu ripi ripl ripp ripr rips ript riri rirs risi risp riss rist risu riti ritl rits ritt ritu rius rlls rpii rpls rpps rpts rrrr rrsp rsbi rsis rslp rspb rsps rssl rstp rsts rstu rtls rtlt rtps rtss rttp rtts rubb rubi rubp rubs rubu ruis ruit rull rupp rupt ruri rurp rurs ruru rusi russ rust rusu ruti rutl ruts rutt rutu s-ib s-ii