-up b-p b-u bbb bbi bbn bbp bbr bbt bbu bi- bib bii bin bip bir bit biu bnb bni bnn bnp bnr bnt bnu bpb bpi bpn bpp bpr bpt bpu brb bri brn brp brr brt bru btb bti btn btp btr btt btu bub bui bun bup bur but buu ibb ibi ibn ibp ibr ibt ibu iib iii iin iip iir iit iiu in- inb ini inn inp inr int inu ipb ipi ipn ipp ipr ipt ipu ir- irb iri irn irp irr irt iru itb iti itn itp itt itu iu- iub iui iup iur iut n-i nbb nbi nbn nbp nbr nbt nbu nib nii nin nip nir nit niu nnb nni nnn nnp nnt nnu npb npi npn npp npr npt npu nrb nri nrn nrp nrr nrt nru ntb nti ntn ntp ntr ntt ntu nub nui nun nup nur nut nuu p-p pbb pbi pbn pbp pbr pbt pbu pib pii pin pip pir pit piu pn- pnb pni pnn pnp pnr pnt pnu ppb ppi ppn ppp ppr ppt ppu prb pri prn prp prr prt pru pt- ptb pti ptn ptp ptr ptt ptu pub pui pun pup pur put puu rbb rbi rbn rbp rbr rbt rbu rib rii rin rip rir rit rnb rni rnn rnp rnr rnt rnu rpb rpi rpn rpp rpr rpt rpu rrb rri rrn rrp rrr rrt rru rtb rti rtn rtp rtr rtt rtu rub rui run rup rur rut ruu tbb tbi tbn tbp tbr tbt tbu tib tii tin tip tir tit tiu tnb tni tnn tnp tnr tnt tpb tpi tpn tpp tpr tpt tpu trb tri trn trp trr trt tru ttb tti ttn ttp ttr ttt ttu tub tui tun tup tur tut tuu ubb ubi ubn ubp ubr ubt ubu uib uii uin uip uir uit uiu un- unb uni unn unp unr unt unu up- upb upi upn upp upr upt upu ur- urb uri urn urp urr urt uru utb uti utn utp utr utt utu uun uur uut uuu

bbbb bbin bbpr bibb bibi biin bin- bini binn bint binu bipp bipu birb biri birn birr birt biru bitt bitu bnib bnin bnpp bnrr bpti brin brit brrr brun brup brut btbp btrt bttb bubb bubi bubu buin buir buit buiu bunb buni bunn bunt bunu bur- burb buri burn burp burr burt buru but- buti butt ibri ibtb iiii iiit iitr iitt init inni innr innu inp- inpi inpp inpt inri inti intn intp intr intu inui inun inup ipin ippr ipri ipur iput irbp iri- irin irip irri irti irtp irun itin itri itup itur iuiu iupp n-ii n-up nbpp nbti nibi niip niir niit niiu nini nipr nipt nirt niru nitb niti nitr niur nnit nnnn nnpi nnpr nntn npin npri nprt nptn nrpn ntnu ntru nttr ntui nubi nuin nuit nunn nunt nuri nurn nurp nurr nurt nuru nutt nutu pibb pibi piip pini pinn pinp pint pinu pipi pipp piri pirn pirr piru piti pitr pitt pitu pnin pnpp pntr pnup ppib pppn pppp ppru pptn pptt ppur pri- prii prin prnp prri prti prtp prtr prut pruu ptui pubu puin puir puit puiu punt punu pupi pupu pur- purb puri purp purr puru put- puti putt putu rbbb rbbr rib- ribu riin rinn ripi ripp ripr ript riri riti ritt ritu rnbr rnin rnnt rntp rnut rpii rppn rptn rrrr rrun rttp rubb rubi rubp rubu ruin ruit runi runn runt rupp rupt ruri rurp ruru ruti rutt rutu ruun tbit tbrb tbtp tibi tibu tiit tiiu tini tinn tint tinu tip- tipi tipp tipt tipu tirb tiri tirr tiru titi titp titt titu tnut tpir tppp tppr tptp tptr tput tri- trib trin trip trit trpn trpp trtr trub trun trut truu ttbb tttt tubb tubr tubu tuin tuit tuiu tunb tuni tunn tunu tupi tupu turb turi turn turp turr turt turu tuti tutt tutu u-rp ubbi ubii ubir ubit uint uipi uirr uni- unii unin unir unit unni untb unut upin upnp uppp uppu upri upup urbi urib urin uriu urni urri urun urup urur urut utin utri utti uttu uuni uuri uuuu

bibin bibri binit binub bipib bipin birin birni birun birur bitit bitru bitti bitun bitup brini brinn brint britt brrrr bruin bruit bruiu bruni brunn brunt bruri bruun btr-t buirn bunin bunun bunut burin burn- burnt burri burru burtt burun burut butin butit butut i-pin ibbur ibtin iiiii iitti iiuni inbin inini inipi innit inniu innti input inrun intpr inuit inurn ipini ipiti ipubi irbit irinn irpin irrit irupi itbit itrip ittti itu-r itu-t ituni ituri iturn ituru itutu iunit iuput n-p-n nibbi niibi niiip ninib ninti nintu ninur ninut nipin nipit nippu nipri nipup nirit nitin nitr- nitti ntini ntnui nu-nu nuiit nunit nunni nunun nupur nurin nurit nurri nurun nutri p-n-p piiri pinin pinit pinn- pinni pinup pipit pippi pipri pirin pirni pirri pirui pitin pitip pitri pitru pitti piuri piuru pptnt priit print priti pritt prntr pruin prun- pruni prunt ptprb ptprn ptprr ptprt ptpru punbb punti pupin pupri purin putin putit putt- putti puttu putun putup puuri ribbi ribin ribup rintt ripit ripup rirpu rubbi rubin rubup ruiru runin runit runup rupin rupit rutin ruutu t-nut tbtbt tbutt ti-ti tibbi tibbu tibin tibni tibur tinui tinun tipin tipit tippi tippu tipup tirit tirru tirur titii titin titpn titti titup tntnt tribu triin triip trini tripi tripp tript trit- tritn tritt trpin trubu truit trupt ttttt tubi- tubin tubri tunip tuppi turbi turbt turin turit turn- turnp turnt turnu turri turtu turup turut tutin tutti tutun tuubi tuuri tuuru u-bit u-n-i u-nii ubirr uitti unbit unini uninn unipi uniti unnun unnur unnut unpin unput unrip unrun unurn upput uprun urin- urpin urubu uruit ururi uruti urutu uttur uturn uturu uuuuu

b-unit bbbbbb bibiri bibiru binbit binpur biribi birini birpur birtin bittur bituin biturn bribir bribri brubru brunii brutii brutti bububu burbur buriti burnin burnup burnut burrup