bbbb bbch bbci bbfc bbrc bbrg bcbc bcbg bccc bcci bcfc bcit bcru bctc bcuc bfgf bftt bgfc bght bhcc bhff bhir bhit bhrt bhur bhut bhuu bibb bibi bicc bicg bich bici biff bifi bigb bigc bigg bigt bigu bihi bihu birb birg biri birr birt biru bitc bith bitt bitu brcb brfc brfu bric brig brih brit brrr brtc bruc brug bruh brut btcc btfc btrc btrt bttb bubb bubi bubu bucc buch buci bucu bufc buff bufr bugg bugh bugi buhi buhr buic buif buir buit buiu bur- burb burg burh buri burr burt buru but- buti butt cbbc cbcc cbcr cbct cbcu cbfb cbfc cbgb cbir cbit cbrh cbrt cbtc cbtf ccbc cccb cccc cccf ccci cccu ccfc ccff ccfi ccgc ccgt cchr ccic ccii ccir ccrc ccrf ccrg ccri ccrt cctb cctc cctt ccuc ccut cfbc cfbr cfbt cfcb cfcf cffb cffr cfit cfrb cfrg cfrt cftc cfth cftr cgcc cgcg cgfc cgtu chch chci chfc chfi chfr chgb chib chic chif chig chih chir chit chiu chrb chrc chrf chrr chrt chtr chtt chub chug chui chur chut cibc cibi cicc cich cici cicr cict cicu ciff cifg cigi cigu cihr ciht ciii ciit cirb circ cirh ciri cirr cirt citb citf citg cith citi citt citu ciuc crbc crbu crcc crcr crfc crib cric crif crig crit criu crrt crtc crtf crub crug crut ctbi ctcf ctfc ctgf ctgu ctic ctrc cub- cubb cubi cucc cuci cufc cuff cufi cui- cuif cuir cuit curb curf curi curr curt cut- cutc cuth cutt fccf fcch fcic fcii ffcc ffff ffii ffrr fftf fghi fhci fhit ficc fich fict fifc fiff fifi fift figc figg fiii fitc fiti fitt frbc frcc frfc frib fric frig frit frub frug ft-c ftfc ftii ftub ftuc fubb fubu fuc- fuci fuct fufc fuff fufu fugh fugi fugu fuig fuir fuit fur- furg furi furr furt futi futu gbfc gc-c gcbc gccc gccf gcfc gcic gcii gcrg gctc gfcf gfci ggbt ggfg gggg gghg ghib ghit ghrf ghug gibb gibh gicr giff gift gifu gigg gigi girg giri girr girt giru gith giur grbr grcc grib gric grif grig grit grrr grtc grub gruf grug grui grur grut gtbr gtcr gtfc gubb gubi gubu guch guci gufc guff gugb gugg gugh gugi gugu guhr guib gurb gurg gurh guri gurr gurt guru guth guti gutt gutu h-ii hbfc hbic hbit hbtu hcbc hccb hccc hcch hcfc hcgh hchi hgfc hggc hgtc hhgg hhhh hi-c hibi hibt hibu hicc hich hiff hifh hifi hifr high higi higt hihc hihi hiht hiit hiiu hirf hiri hirt hiru hitc hiti hitt hrfc hrib hrit hrrc hrtb htcc htfc httr hubb hubi huch hucu hufc huff hufu hugg hugh hugi huhi huhu huib huif huir huit huri hurr hurt huru huth huti hutt hutu huub ibfi ibrc ibri ibtb ibtc icbc iccb iccc iccf icci iccr icct iccu icfb icgc ichc ichi ichr ichu icrc icrf icrr icrt icru icub ifbb ifht ific ifit ifrb ifrf ifri igbc igcc igfc ight igri ihcc ihit ihrc ihtc ihub ihug iiht iiii iiit iirc iitr iitt iiuc ircc ircg ircu irfu iri- iric irig irrc irri irtf irti itch itgc ithc itic itif itrf itri ittf itur iucc iuiu rbbb rbbr rbgh rcbc rccb rccc rcfc rcgc rchb rcic rcrg rctc rctg rcti rffc rfic rftc rgbi rgit rgtr rhbg rhcg rhib rhug rib- ribu ricc rich rict riff rift rifu rigg righ rigi rigu riht riif riri rith riti ritt ritu rrfc rrif rrrr rtbf rtcc rtcg rtfb rtfc rubb rubi rubu ruch ruci ruct rufc ruff ruft rugg rugh rugi ruhh ruhi ruhr ruif ruit rurc ruri ruru ruth ruti rutt rutu tbcb tbcc tbit tbrb tccc tccu tcfc tcfg tch- tchh tchi tchr tchu tctc tfcu tftc tgcc tgif tgtc thch thi- thic thif thig thir thri thru thtb thtr thug thur tibi tibu ticc tich tiff tift tigh tigi tigr tiht tihu tiit tiiu tirb tiri tirr tiru titc tith titi titt titu trcc trfc trfr tri- trib tric trif trig trit trtc trtr trub truc trug trut truu ttbb ttfc ttff tttt tubb tubr tubu tucc tuch tufc tuff tufi tuft tufu tugg tugh tugu tuht tuhu tuig tuit tuiu turb turc turf turg turi turr turt turu tuti tutt tutu ubbi ubic ubii ubir ubit ubtf ucbc ucci ucfb uchi ucrc ucut ufcu ugcc ugcg uggt ughi ugri ugur uguu uhti uhuh uirr urbi urch urci urff urfi urft urgh urgi urgu urib uric urif uriu urrh urri urth urur urut utri utti uttu utug uuri uutf uuuu