-er -ic bbb bbc bbe bbi bbm bbr bbt bcb bcc bce bci bcm bcr bct be- beb bec bee bei bem ber bet bi- bib bic bie bii bim bir bit bmb bmc bme bmi bmm bmr bmt brb bre bri brm brr brt btb btc bte bti btm btr btt c-- cbb cbc cbe cbi cbm cbr cbt ccb ccc cce cci ccm ccr cct ce- ceb cec cee cei cem cer cet ci- cib cic cie cii cim cir cit cmb cmc cme cmi cmm cmr cmt crb crc cre cri crm crr crt ctb ctc cte cti ctm ctr ctt ebb ebc ebe ebi ebm ebr ebt ec- ecb ecc ece eci ecm ecr ect eeb eec eee eem eer eet eib eic eie eii eim eir eit em- emb emc eme emi emm emr emt erb erc ere eri erm err ert etb etc ete eti etm etr ett ibb ibc ibe ibi ibm ibr ibt icb icc ice ici icm icr ict ie- iec iee iei iem ier iet iib iic iie iii iim iir iit im- imb imc ime imi imm imt ir- irb irc ire iri irm irr irt itb itc ite iti itm itt m-r mbb mbc mbe mbi mbm mbr mbt mc- mcb mcc mce mci mcm mcr mct meb mec mee mei mem mer met mi- mib mic mie mii mim mir mit mmb mmc mme mmi mmm mmr mmt mrb mrc mre mri mrm mrr mrt mtb mtc mte mti mtm mtr mtt rbb rbc rbe rbi rbm rbr rbt rcb rcc rce rci rcm rcr rct re- reb rec ree rei rem rer ret rib ric rie rii rim rir rit rmb rmc rme rmi rmm rmr rmt rrb rrc rri rrm rrr rrt rtb rtc rte rti rtm rtr rtt tbb tbc tbe tbi tbm tbr tbt tcb tcc tce tci tcm tcr tct te- teb tec tee tei tem ter tet tib tic tie tii tim tir tit tmb tmc tme tmi tmm tmr tmt trb trc tre tri trm trr trt ttb ttc tte tti ttm ttr ttt

bbbb bbci bbcm bbeb bbet bbrc bcbc bccc bcci bccm bcec bcer bcet bcie bcit bctc bebb bebe bebi beci beeb beem beer beet beic beim beir beit beme berc bere beri berm berr bert betc bete beti bett bibb bibe bibi bicc bice bici bieb bier biet birb bire biri birr birt bitc bite bitt bmce bmci bmic bmir bmmi bmtc brcb brce breb brec bree brei brem brer bret bric brie brim brit brmc brrm brrr brtc btcc btec btie btrc btrt bttb cbbc cbcc cbce cbcm cbcr cbct cbec cbee cber cbet cbir cbit cbme cbre cbrm cbrt cbtc ccbc cccb cccc ccci cccm ccee ccic ccii ccim ccir ccmb ccmc ccmm ccrc ccre ccri ccrt cctb cctc cctt cec- cece ceci cecm cect ceeb ceec ceem ceim cemb ceme cemm cemr cer- cerc cere ceri cert cet- cete ceti cibc cibe cibi cicc cici cicr cict ciee cier ciii ciit cimb cime cimi cimm cimr cirb circ cire ciri cirm cirr cirt citb cite citi citt cmbc cmcc cmec cmii cmir cmmb cmmc cmmi cmri cmrr cmtc crbc crcc crce crcr cre- creb crec cree crei crem cret crib cric crie crim crit crmb crrt crtc crtm ctbi ctec ctic ctrc ctrm ebbc ebbr ebcc eber ebic ebit ecbc ecbe eccb eccc ecce ecci eccm ecct ecem ecib ecim ecit ecmi ecrc ecri ecrm ecrr ect- ectc eeee eerc eetc eete eiec eiei eier eime eimi eire eitb eitc eiti eitm eitr embe embi embr emcc emer emet emic emii emim emir emit emme emmi emre emte erbb erbe ercc erce ereb erec erei erem erer eret eric erie erim erit ermc erme errc erre etbc etbr etcc etec etee etem eter etic etim etre etrm ette etti i-be ibbm ibec ibet ibie ibim ibrc ibri ibtb ibtc icbc icbm iccb iccc icci iccr icct icec icee icem icer icet icmc icme icmi icmm icmt icrc icre icrm icrr icrt iecc ieet ieie ieme iere ieri ietm iett iiie iiii iiit iimc iirc iitm iitr iitt imbe imbi imcb imci imec imer imet imir imit imme immi immt imrc imre imri imrr irbe irbm ircc iree irem irer iri- iric irie irmc irrc irre irri irte irti itbe itcm itec item iter itet itic itie itim itme itri mbci mbim mcbc mcbi mccc mcci mcic mcii mcit mcmc mcmi mcmt mcrc mcri mctc mebe mec- mecc mece mecr meem meer meet meic meir meit memc meme memr mer- merb merc mere meri merm mert met- mete meti mett mibc micc mice mici micr mict miee miem mier miet miii miit mim- mime mimi mirc mire miri mirr mirt mit- mitb mitc mite miti mitm mitt mmcc mmci mmcm mmct mmic mmii mmmc mmmm mmrc mr-c mrbb mrbm mrcb mrcc mrce mreb mree mrmc mrrc mrtm mrtt mtbc mtcr mtrc mtre mtrr mttr rbbb rbbr rcbc rccb rccc rcet rcic rctc rcti rebb rebe recc rece reci recm recr rect reeb reem reet reii reim reir reit reme remi rere reri rert rete reti retr rett rib- ribe ricc rice rict riem rier riet rime rimi rimm rire riri rite riti ritt rrmc rrrr rtcc rtce rtcm rtee rtei rtmc rtmi tbcb tbcc tbce tbit tbrb tccc tctc tecr tect teec teem teer teet teic teie teim teir teme ter- terc tere teri term terr tete teti tetr tett tibi ticc tice tie- tiee tiei tier tiet tiit time timi timm tirb tire tiri tirr titc tite titi titt tmbc tmbr tmcc tmcm tmtt trcc tre- trec tree trei trem tret tri- trib tric trie trim trit trmb trmi trtc trte trtr ttbb tter ttim tttt

-tree bbbee be-er beber bebic bebti becic beebe beeri beete beibi beice beier beire beite bembe bemer bemet berbe berec berei beret berie berim berit berme berre berri berte berti betee beter betie betim betre bett- bette