bbbb bbci bbeb bbet bbrc bbrg bcbc bcbg bccc bcci bcec bcer bcet bcie bcit bctc bebb bebe bebi beci beck beeb beeg beek beer beet begg begi beic beik beir beit beke beki berc bere berg beri berk berr bert betc bete beti bett bibb bibe bibi bicc bice bicg bici bick bieb bier biet bigb bigc bige bigg bigt bike birb bire birg biri birk birr birt bitc bite bitt brcb brce breb brec bree breg brei brek brer bret bric brie brig brik brit brkb brrr brtc btcc btec btek btie btrc btrt bttb cbbc cbcc cbce cbcr cbct cbec cbee cber cbet cbgb cbir cbit cbkg cbkr cbre cbrt cbtc ccbc cccb cccc ccci ccee ccgc ccgt ccic ccii ccir ccrc ccre ccrg ccri ccrt cctb cctc cctt cec- cece ceci cect ceeb ceec cege ceke cer- cerc cere ceri cert cet- cete ceti cgcc cgcg cger cibc cibe cibi cicc cici cicr cict ciee cier cigi ciii ciit cikr cirb circ cire ciri cirk cirr cirt citb cite citg citi citt ckbc ckbe ckbi ckck cker ckrc cktb crbc crcc crce crcr cre- creb crec cree creg crei cret crib cric crie crig crik crit crkc crrt crtc ctbi ctec ctge ctic ctrc ebbc ebbr ebcc eber ebic ebit ecbc ecbe eccb eccc ecce ecci ecct ecib ecig ecit ecrc ecri ecrr ect- ectc eeee eeke eerc eerg eetc eete egbe egcc egcg egcr egec egee eger eggb egge eggi egir egre egri egte egtk eick eiec eiei eier eige eigg eike eiki eire eitb eitc eiti eitr ekeb ekek eker eket ekki erbb erbe ercc erce ereb erec erei erer eret erg- ergg ergi eric erie erik erit erke erki errc erre etbc etbr etcc etec etee eter etic etik etre ette etti gc-c gcbc gccc gcet gcic gcii gcrg gctc gebe gebi gece geck geek geer geet gege gegg geic geie geig geir geit geki gerb gere geri gert getb gete getg geti getk gett ggbt gggg gibb gibe gick gicr gier giet gige gigg gigi gire girg giri girk girr girt gite grbr grcc grce greb grec gree greg gret grib gric grie grig grit grrr grtc gtbr gtcr i-be ibec ibeg ibet ibge ibie ibrc ibri ibtb ibtc icbc iccb iccc icci iccr icct icec icee icer icet icgc icke icrc icre icrr icrt iecc ieet ieie iere ieri iett igbc igcc iger iget igkc igri iiie iiii iiit iirc iitr iitt ikee iker ikig ikki ikri irbe ircc ircg iree irer iri- iric irie irig irki irrc irre irri irte irti itbe itec itek iter itet itgc itic itie itri k-ci kbbb kbbc kbbe kbbg kbbi kbbk kbbr kbbt kbcb kbce kbci kbck kbcr kbct kbeb kbec kbee kbek kber kbet kbgb kbge kbgg kbgr kbgt kbib kbic kbie kbig kbik kbit kbkb kbkg kbkk kbkr kbrb kbrc kbre kbrg kbri kbrk kbrt kbtb kbtc kbte kbtk kbtr kbtt kcbc kcbi kcbk kcbr kccb kccc kcci kcck kccr kcct kceb kcec kcee kceg kcei kcet kcgc kcgi kcgr kcic kcie kcii kcir kcit kckc kckk kckr kcrc kcrg kcri kcrr kcrt kctb kctc kcte kcti kebb kebc kebe kebi kebr kebt kecg keck kecr keek keer keet kege kegg kegi kegk kegr keib keig keii keik keir kekb kekc keke keki ker- kerb kerc kere keri kerk kerr kert ket- ketc kete keti ketk ketr kett kgbb kgbc kgbr kgbt kgcb kgcc kgce kgcr kgeb kgec kget kggg kggi kggr kgir kgrb kgrc kgre kgrg kgri kgrk kgrr kgrt kgtk kibb kibc kibe kibg kibi kibr kibt kicb kicc kice kicg kick kicr kict kier kigc kiic kiii kiik kiit kikc kiki kikk kikr kikt kirb kirc kiri kirk kirr kirt kitc kite kitg kiti kitr kitt kkbb kkbe kkbg kkbi kkbr kkbt kkcb kkci kkck kkcr kkct kkeg kkgb kkgr kkic kkik kkit kkkk kkrb kkrc kkre kkrk kkrr kkrt kktc kktk krbb krbe krbg krbi krbk krbr krbt krcb krcc krce krcg krci kreb krec kree krei krek kret krgi krgt krib krik krit krkc krke krki krkk krkr krrb krrc krre krrg krri krrk krrr krrt krtc krti krtk krtr ktbb ktbc ktbg ktbr ktbt ktcc ktce ktck ktcr ktec ktee kteg ktek ktge ktgg ktgr ktib ktic ktie ktig ktik ktkb ktkc ktke ktkk ktkr ktkt ktrb ktrc ktre ktrg ktri ktrk ktrr ktrt kttc kttg ktti kttk kttr kttt rbbb rbbr rcbc rccb rccc rcet rcgc rcic rcrg rctc rctg rcti rebb rebe rebk recc rece reci reck recr rect reeb reek reet rege regi regr regt reii reik reir reit reke reki rekt rere rerg reri rert rete reti retr rett rgbe rgbi rgit rgtr rib- ribe ricc rice rick rict riek rier riet rige rigg rigi rike riki rikk rire riri rite riti ritt rrrr rtcc rtce rtcg rtee rtei rtkg tbcb tbcc tbce tbit tbrb tccc tctc teck tecr tect teec teek teer teet tegg tegi tegt teic teie teir teke ter- terc tere teri terk terr tete teti tetr tett tgcc tgtc tibi ticc tice tick tie- tiee tiei tier tiet tige tigi tigr tiit tike tiki tirb tire tiri tirr titc tite titi titt tkkg trcc tre- trec tree treg trei trek tret trge tri- trib tric trie trig trik trit trtc trte trtr ttbb tter ttkg tttt