-er -ic bbb bbc bbe bbg bbi bbk bbr bbt bcb bcc bce bcg bci bck bcr bct be- beb bec bee beg bei bek ber bet bgb bgc bge bgg bgi bgk bgr bgt bi- bib bic bie big bii bik bir bit bkb bkc bke bkg bkk bkr bkt brb bre brg bri brk brr brt btb btc bte btg bti btk btr btt c-- cbb cbc cbe cbg cbi cbk cbr cbt ccb ccc cce ccg cci cck ccr cct ce- ceb cec cee ceg cei cek cer cet cgb cgc cge cgg cgi cgr cgt ci- cib cic cie cig cii cik cir cit ckb ckc cki ckt crb crc cre crg cri crk crr crt ctb ctc cte ctg cti ctk ctr ctt ebb ebc ebe ebg ebi ebk ebr ebt ec- ecb ecc ece ecg eci eck ecr ect eeb eec eee eeg eek eer eet egb egc ege egg egi egr egt eib eic eie eig eii eik eir eit ekb ekc eke ekg eki ekr ekt erb erc ere erg eri erk err ert etb etc ete etg eti etk etr ett gbc gbe gbg gbi gbk gbr gbt gcb gcc gce gcg gci gck gcr gct ge- geb gec gee geg gei gek ger get ggb ggc ggg ggi ggr ggt gib gic gie gig gii gik gir git gkb gkt grb grc gre grg gri grk grr grt gtb gtc gte gtg gti gtk gtr gtt ibb ibc ibe ibg ibi ibk ibr ibt icb icc ice icg ici ick icr ict ie- iec iee ieg iei iek ier iet igb igc ige igg igi igk igr igt iib iic iie iii iir iit ikb ikc ike iki ikk ikr ikt ir- irb irc ire irg iri irk irr irt itb itc ite itg iti itk itt k-t kbb kbc kbe kbi kbk kbr kcb kcc kce kcg kci kck kcr kct ke- keb kec kee keg kei kek ker ket kgb kgc kgi kib kic kie kig kii kik kir kit kkb kkc kke kki kkk kkr kkt krc krg kri krk krr krt ktb ktc kte ktg ktk ktr ktt rbb rbc rbe rbg rbi rbk rbr rbt rcb rcc rce rcg rci rcr rct re- reb rec ree reg rei rek rer ret rgb rgc rge rgg rgi rgk rgr rgt rib ric rie rig rii rik rir rit rkb rkc rke rkg rkk rkt rrb rrc rrg rri rrk rrr rrt rtb rtc rte rtg rti rtk rtr rtt tbb tbc tbe tbg tbi tbk tbr tbt tcb tcc tce tcg tci tck tcr tct te- teb tec tee teg tei tek ter tet tgb tgc tge tgg tgi tgk tgr tgt tib tic tie tig tii tik tir tit tkb tkc tke tkg tkk tkr tkt trb trc tre trg tri trk trr trt ttb ttc tte ttg tti ttk ttr ttt

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