-er -ic b-u bbb bbc bbe bbi bbl bbr bbt bbu bcb bcc bce bci bcl bcr bct bcu be- beb bec bee bei bel ber bet beu bi- bib bic bie bii bil bir bit biu blb blc ble bli bll blr blt blu brb bre bri brl brr brt bru btb btc bte bti btl btr btt btu bub buc bue bui bul bur but buu c-- cbb cbc cbe cbi cbl cbr cbt cbu ccb ccc cce cci ccl ccr cct ccu ce- ceb cec cee cei cel cer cet ceu ci- cib cic cie cii cil cir cit ciu cl- clb clc cle cli cll clr clt clu crb crc cre cri crl crr crt cru ctb ctc cte cti ctl ctr ctt ctu cub cuc cue cui cul cur cut cuu ebb ebc ebe ebi ebl ebr ebt ebu ec- ecb ecc ece eci ecl ecr ect ecu eeb eec eee eel eer eet eib eic eie eii eil eir eit eiu elb elc ele eli ell elr elt elu erb erc ere eri erl err ert eru etb etc ete eti etl etr ett etu eu- eub euc eue eui eul eur eut ibb ibc ibe ibi ibl ibr ibt ibu icb icc ice ici icl icr ict icu ie- iec iee iei iel ier iet iib iic iie iii iil iir iit iiu il- ilb ilc ile ili ill ilr ilt ilu ir- irb irc ire iri irl irr irt iru itb itc ite iti itl itt itu iu- iub iuc iue iui iur iut lbb lbc lbe lbi lbl lbr lbt lbu lcb lcc lce lci lcl lcr lct lcu leb lec lee lei lel ler let leu lib lic lie lii lil lir lit liu llb llc lle lli lll llr llt llu lrb lrc lri lrr lrt lru ltb ltc lte lti ltl ltr ltt ltu lub luc lue lui lul lur lut luu rbb rbc rbe rbi rbl rbr rbt rbu rcb rcc rce rci rcl rcr rct rcu re- reb rec ree rei rel rer ret reu rib ric rie rii ril rir rit rlc rle rli rll rlr rlt rlu rrb rrc rri rrl rrr rrt rru rtb rtc rte rti rtl rtr rtt rtu rub ruc rue rui rur rut ruu tbb tbc tbe tbi tbl tbr tbt tbu tcb tcc tce tci tcl tcr tct tcu te- teb tec tee tei tel ter tet teu tib tic tie tii til tir tit tiu tlc tle tli tll tlr tlt tlu trb trc tre tri trl trr trt tru ttb ttc tte tti ttl ttr ttt ttu tub tuc tue tui tul tur tut tuu ubb ubc ube ubi ubl ubr ubt ubu ucb ucc uce uci ucl ucr uct ucu ueb uec uee uei uel uer uet uib uic uie uii uil uir uit uiu ulb ulc ule uli ull ulr ult ulu ur- urb urc ure uri url urr urt uru utb utc ute uti utl utr utt utu uuc uue uur uut uuu

bbbb bbci bbeb bbet bblb bbrc bcbc bccc bcci bccl bcec bcer bcet bcie bcit bcru bctc bcuc bebb bebe bebi beci becu beeb beel beer beet beic beil beir beit bele beli bell belt belu berc bere beri berr bert beru betc bete beti bett betu beur bibb bibe bibi bibl bicc bice bici bieb biel bier biet bieu bile bili bill bilt bilu birb bire biri birl birr birt biru bitc bite bitt bitu blbt blcu bleb blee blei blet bleu blic blir blit blrc blub blue blur blut brcb brce breb brec bree brei brel brer bret bric brie bril brit brrr brtc bruc brue brut btcc btcl btec btie btrc btrt bttb bubb bube bubi bubu bucc buce buci bucu buel buer bueu buic buie buir buit buiu bulb bule buli bull bult bulu bur- burb bure buri burl burr burt buru but- bute buti butt cbbc cbcc cbce cbcl cbcr cbct cbcu cbec cbee cber cbet cbir cbit cblb cblc cbre cbrl cbrt cbtc cbtl ccbc cccb cccc ccci cccl cccu ccee ccel ccic ccii ccil ccir cclc ccli ccrc ccre ccri ccrl ccrt cctb cctc cctl cctt ccuc ccut cebu cec- cece ceci cect ceeb ceec ceel ceil cel- celc cele celi cell celt cer- cerc cere ceri cerl cert cet- cete ceti ceui cibc cibe cibi cicc cici cicr cict cicu ciee ciel cier ciii ciit cili cill cilt cirb circ cire ciri cirl cirr cirt citb cite citi citl citt citu ciuc clec clee clei cler clet cleu clib clic clii clir clit clri cltb cltc club clue clut crbc crbu crcc crce crcr cre- creb crec cree crei cret creu crib cric crie crit criu crrt crtc crtl crub crue crut ctbi ctec ctic ctle ctrc ctrl cub- cubb cube cubi cucc cuce cuci cuer cui- cuil cuir cuit culb culc cule cull cult curb cure curi curl curr curt cut- cutc cute cutt e-cl ebbc ebbr ebcc ebel eber ebic ebit ebli ebru ebul ebur ecbc ecbe eccb eccc ecce ecci eccl ecct ecib ecil ecit eclt ecrc ecri ecrl ecrr ecru ect- ectc eeee eele eerc eetc eete eetu eiec eiei eier eile eire eitb eitc eiti eitr el-b elbe elbi elbu elcb elce elec elee eler elet elic elie elil elit elle elli ellu elte elue elui elul erbb erbe ercc erce ereb erec erei erel erer eret eric erie eril erit eriu erle erli erll errc erre ertl ertu erub eruc erur etbc etbr etcc etec etee etel eter etic etre ette etti ettu etui eubc eubi euer eule eur- eurc eure eurt i-be ibec ibet ibie ible ibrc ibri ibtb ibtc ibtl icbc iccb iccc icci iccl iccr icct iccu icec icee icel icer icet icle icll iclr icrc icre icrr icrt icru icub icue iecc ieet ieie iele iere ieri iett iiie iiii iiit iirc iitr iitt iiuc ilbc ilce ile- ilec iler ilet ilic