-er -ic bbb bbc bbe bbf bbi bbk bbr bbt bcb bcc bce bcf bci bck bcr bct be- beb bec bee bef bei bek ber bet bfb bfc bfe bff bfi bfr bft bi- bib bic bie bif bii bik bir bit bkb bkc bke bkf bkk bkr bkt brb bre brf bri brk brr brt btb btc bte btf bti btk btr btt c-- cbb cbc cbe cbf cbi cbk cbr cbt ccb ccc cce ccf cci cck ccr cct ce- ceb cec cee cef cei cek cer cet cfb cfc cfe cff cfi cfk cfr cft ci- cib cic cie cif cii cik cir cit ckb ckc cki ckt crb crc cre crf cri crk crr crt ctb ctc cte ctf cti ctk ctr ctt ebb ebc ebe ebf ebi ebk ebr ebt ec- ecb ecc ece ecf eci eck ecr ect eeb eec eee eef eek eer eet ef- efb efc efe eff efi efr eft eib eic eie eif eii eik eir eit ekb ekc eke ekf eki ekr ekt erb erc ere erf eri erk err ert etb etc ete etf eti etk etr ett fbb fbc fbe fbf fbi fbk fbr fbt fcb fcc fce fcf fci fck fcr fct feb fec fee fef fei fek fer fet ffc ffe fff ffi ffk ffr fft fib fic fie fif fii fik fir fit fkb fkc fkf fki fkk fkt frb frc fre frf fri frk frr frt ftb ftc fte ftf fti ftk ftr ftt i-f ibb ibc ibe ibf ibi ibk ibr ibt icb icc ice icf ici ick icr ict ie- iec iee ief iei iek ier iet ifb ifc ife iff ifi ifr ift iib iic iie iif iii iir iit ikb ikc ike ikf iki ikk ikr ikt ir- irb irc ire irf iri irk irr irt itb itc ite itf iti itk itt k-t kbb kbc kbe kbf kbi kbk kbr kcb kcc kce kci kck kcr kct ke- keb kec kee kef kei kek ker ket kfc kff kfi kib kic kie kif kii kik kir kit kkb kkc kke kki kkk kkr kkt krc krf kri krk krr krt ktb ktc kte ktf ktk ktr ktt rbb rbc rbe rbf rbi rbk rbr rbt rcb rcc rce rcf rci rcr rct re- reb rec ree ref rei rek rer ret rfb rfc rfe rff rfi rfk rfr rft rib ric rie rif rii rik rir rit rkb rkc rke rkf rkk rkt rrb rrc rrf rri rrk rrr rrt rtb rtc rte rtf rti rtk rtr rtt tbb tbc tbe tbf tbi tbk tbr tbt tcb tcc tce tcf tci tck tcr tct te- teb tec tee tef tei tek ter tet tfb tfc tfe tff tfi tfk tfr tft tib tic tie tif tii tik tir tit tkb tkc tke tkk tkr tkt trb trc tre trf tri trk trr trt ttb ttc tte ttf tti ttk ttr ttt

bbbb bbci bbeb bbet bbfc bbrc bcbc bccc bcci bcec bcer bcet bcfc bcie bcit bctc bebb bebe bebi beci beck beeb beef beek beer beet befe beff beft beic beik beir beit beke beki berc bere beri berk berr bert betc bete beti bett bftt bibb bibe bibi bicc bice bici bick bieb bief bier biet biff bifi bike birb bire biri birk birr birt bitc bite bitt brcb brce breb brec bree bref brei brek brer bret brfc bric brie brik brit brkb brrr brtc btcc btec btek btfc btie btrc btrt bttb cbbc cbcc cbce cbcr cbct cbec cbee cbef cber cbet cbfb cbfc cbir cbit cbkr cbre cbrt cbtc cbtf ccbc cccb cccc cccf ccci ccee ccfc ccff ccfi ccic ccii ccir ccrc ccre ccrf ccri ccrt cctb cctc cctt cec- cece ceci cect ceeb ceec cef- cefc ceke cer- cerc cere cerf ceri cert cet- cete ceti cfbc cfbr cfbt cfcb cfcf cffb cffr cfit cfrb cfre cfrt cftc cfte cftk cftr cibc cibe cibi cicc cici cicr cict ciee cier cife ciff ciii ciit cikr cirb circ cire ciri cirk cirr cirt citb cite citf citi citt ckbc ckbe ckbi ckck cker ckfi ckfr ckrc cktb crbc crcc crce crcr cre- creb crec cree crei cret crfc crib cric crie crif crik crit crkc crrt crtc crtf ctbi ctcf ctec ctfc ctic ctrc ebbc ebbr ebcc eber ebfc ebic ebit ecbc ecbe eccb eccc ecce ecci ecct ecef ecfc ecfr ecib ecit ecrc ecrf ecri ecrr ect- ectc ectf eeee eefe eeke eerc eetc eete efbr efet effi efic efik efit efke eft- eick eiec eiei eier eike eiki eire eitb eitc eiti eitr ekeb ekek eker eket ekfc ekki erbb erbe ercc erce ereb erec erei erer eret erfc erft eric erie erik erit erke erki errc erre etbc etbr etcc etec etee eter etfb etfc etfe etic etik etre ette etti f--k fccf fcic fcii fece feck fect feeb feek feer feet fefc fefe feff fefi feie feir feit feke ferb ferc fere ferk ferr fert fete feti fetr fett ffcc ffee ffff ffii ffrr fftf fibe ficc fice fick fict fiec fief fier fifc fife fiff fifi fift fiii fike fiki fire firk fitc fite fiti fitt frbc frcc free frei fret frfc frib fric frie frik frit ft-c fter ftfc ftii i-be ibec ibet ibfi ibie ibrc ibri ibtb ibtc icbc iccb iccc iccf icci iccr icct icec icee icef icer icet icfb icke icrc icre icrf icrr icrt iecc ieet ieie iere ieri ietf iett ifbb ifer ific ifit ifrb ifrf ifri iiie iiii iiit iirc iitr iitt ikee iker ikki ikri irbe ircc iree irer irfe iri- iric irie irki irrc irre irri irte irtf irti itbe itec itek iter itet itic itie itif itrf itri ittf k-ci kbbb kbbc kbbe kbbf kbbi kbbk kbbr kbbt kbcb kbce kbci kbck kbcr kbct kbeb kbec kbee kbef kbek kber kbet kbfb kbfc kbff kbfi kbfk kbfr kbft kbib kbic kbie kbif kbik kbit kbkb kbkf