-ic b-u bbb bbc bbi bbn bbr bbt bbu bcb bcc bci bcn bcr bct bcu bi- bib bic bii bin bir bit biu bnb bnc bni bnn bnr bnt bnu brb bri brn brr brt bru btb btc bti btn btr btt btu bub buc bui bun bur but buu c-- cbb cbc cbi cbn cbr cbt cbu ccb ccc cci ccn ccr cct ccu ci- cib cic cii cin cir cit ciu cn- cnb cnc cni cnn cnr cnt cnu crb crc cri crn crr crt cru ctb ctc cti ctn ctr ctt ctu cub cuc cui cun cur cut cuu ibb ibc ibi ibn ibr ibt ibu icb icc ici icn icr ict icu iib iic iii iin iir iit iiu in- inb inc ini inn inr int inu ir- irb irc iri irn irr irt iru itb itc iti itn itt itu iu- iub iuc iui iur iut n-i nbb nbc nbi nbn nbr nbt nbu ncb ncc nci ncn ncr nct ncu nib nic nii nin nir nit niu nnb nnc nni nnn nnt nnu nrb nrc nri nrn nrr nrt nru ntb ntc nti ntn ntr ntt ntu nub nuc nui nun nur nut nuu rbb rbc rbi rbn rbr rbt rbu rcb rcc rci rcn rcr rct rcu rib ric rii rin rir rit rnb rnc rni rnn rnr rnt rnu rrb rrc rri rrn rrr rrt rru rtb rtc rti rtn rtr rtt rtu rub ruc rui run rur rut ruu tbb tbc tbi tbn tbr tbt tbu tcb tcc tci tcn tcr tct tcu tib tic tii tin tir tit tiu tnb tnc tni tnn tnr tnt trb trc tri trn trr trt tru ttb ttc tti ttn ttr ttt ttu tub tuc tui tun tur tut tuu ubb ubc ubi ubn ubr ubt ubu ucb ucc uci ucn ucr uct ucu uib uic uii uin uir uit uiu un- unb unc uni unn unr unt unu ur- urb urc uri urn urr urt uru utb utc uti utn utr utt utu uuc uun uur uut uuu

bbbb bbci bbin bbrc bcbc bccc bcci bcit bcnu bcru bctc bcuc bibb bibi bicc bici biin bin- binc bini binn bint binu birb biri birn birr birt biru bitc bitt bitu bnib bnin bnrr brcb bric brin brit brrr brtc bruc brun brut btcc btrc btrt bttb bubb bubi bubu bucc buci bucu buic buin buir buit buiu bunb buni bunn bunt bunu bur- burb buri burn burr burt buru but- buti butt cbbc cbcc cbcn cbcr cbct cbcu cbir cbit cbrn cbrt cbtc ccbc ccbn cccb cccc ccci cccu ccic ccii ccir ccnb ccnc ccni ccnr ccnu ccrc ccri ccrt cctb cctc cctt ccuc ccut cibc cibi cicc cici cicr cict cicu ciii ciit cin- cinc cini cint cirb circ ciri cirr cirt citb citi citt citu ciuc cnbc cnci cnib cnic cnrc cnrr cnrt cntc cntr cnut crbc crbu crcc crcr crib cric crin crit criu crrt crtc crub crun crut ctbi ctic ctrc ctrn cttn cub- cubb cubi cucc cuci cucn cui- cuin cuir cuit cunt curb curi curn curr curt cut- cutc cutt ibrc ibri ibtb ibtc icbc iccb iccc icci iccn iccr icct iccu icnb icnc icrc icrr icrt icru icub iiii iiit iirc iitr iitt iiuc incb inci incr init inni innr innu inri inti intn intr intu inui inun ircc ircu iri- iric irin irrc irri irti irun itic itin itri itur iucc iuiu n-ii nbbc nbcc nbci nbic nbti ncbc ncbi nccc ncci nccn nccr ncct nccu ncit ncnc ncrc ncri nctc nctr nibi nicc nici nicu niir niit niiu nini nirt niru nitb nitc niti nitr niur nnit nnnn nntn nric nrrc ntbc ntcc ntnu ntrc ntru nttr ntuc ntui nubc nubi nuci nucu nuin nuit nunc nunn nunt nurc nuri nurn nurr nurt nuru nutt nutu rbbb rbbr rcbc rccb rccc rcic rcnr rctc rcti rib- ribu ricc rict riin rinn riri riti ritt ritu rnbr rnin rnnt rnut rrrr rrun rtcc rubb rubi rubu ruci ruct ruin ruit runc runi runn runt rurc ruri ruru ruti rutt rutu ruun tbcb tbcc tbit tbrb tccc tccu tcnn tctc tibi tibu ticc tiit tiiu tinc tini tinn tint tinu tirb tiri tirr tiru titc titi titt titu tnbc tncc tnut trcc tri- trib tric trin trit trtc trtr trub truc trun trut truu ttbb ttcn tttt tubb tubr tubu tucc tuin tuit tuiu tunb tunc tuni tunn tunu turb turc turi turn turr turt turu tuti tutt tutu ubbi ubic ubii ubir ubit ucbc ucci ucin ucrc ucut uint uirr uncc unci unct uni- unic unii unin unir unit unni untb unut urbi urci urib uric urin uriu urni urri urun urur urut utin utri utti uttu uuni uuri uuuu

bibic bibin bibri binci binic binit binub birin birni birun birur bitit bitru bitti bitun brini brinn brint britt brrrr bruin bruit bruiu bruni brunn brunt bruri bruun btr-t bucci bucic bucin bucur buici buirn bunic bunin bunun bunut burcu buric burin burn- burnt burri burru burtt buruc burun burut butin butit butut ccccc cccii cciii ccitt cibin cibir cinct cincu cinii cinit cinti ciric cirr- cirri citr- ciuti cnnnn cntrc cribb crini crnci crnic cruin crunt cubi- cubic cubin cubit cubub cucui cunic cunin cunit cunt- cunut curbi curic curri curti cutcu cuti- cutin cutit ibbur ibtin icbrr icici ictic iiiii iitti iiuni inbin incur incut inini innit inniu innti inrun inuit inurn irbit ircii irinn irrit itbit ittti itu-r itu-t ituni ituri iturn ituru itutu iunit nibbi nicci nicct niibi ninib ninti nintu ninur ninut nirit nitin nitr- nitti ntini ntnui nu-nu nucci nuci- nucin nuiit nunit nunni nunun nurin nurit nurri nurun nutri rcirc ribbi ribin ricci ricin rintt rubbi rubin rucci ruiru runcu runic runin runit ruric rutic rutin ruutu t-nut tbtbt tbutt ti-ti tibbi tibbu tibin tibni tibur ticci tinct tinui tinun tirit tirru tirur titcr titii titin titti tntnt tribu triin trini trit- tritn tritt trubu truit ttttt