-er -ic -th b-u bbb bbc bbe bbh bbi bbl bbr bbt bbu bcb bcc bce bch bci bcl bcr bct bcu be- beb bec bee beh bei bel ber bet beu bhb bhc bhe bhh bhi bhl bhr bht bhu bi- bib bic bie bih bii bil bir bit biu blb blc ble blh bli bll blr blt blu brb bre brh bri brl brr brt bru btb btc bte bth bti btl btr btt btu bub buc bue buh bui bul bur but buu c-- cbb cbc cbe cbh cbi cbl cbr cbt cbu ccb ccc cce cch cci ccl ccr cct ccu ce- ceb cec cee ceh cei cel cer cet ceu ch- chb chc che chh chi chl chr cht chu ci- cib cic cie cih cii cil cir cit ciu cl- clb clc cle clh cli cll clr clt clu crb crc cre crh cri crl crr crt cru ctb ctc cte cth cti ctl ctr ctt ctu cub cuc cue cuh cui cul cur cut cuu ebb ebc ebe ebh ebi ebl ebr ebt ebu ec- ecb ecc ece ech eci ecl ecr ect ecu eeb eec eee eel eer eet ehb ehc ehe ehh ehi ehl ehr eht ehu eib eic eie eii eil eir eit eiu elb elc ele elh eli ell elr elt elu erb erc ere erh eri erl err ert eru etb etc ete eth eti etl etr ett etu eu- eub euc eue eui eul eur eut h-i hbb hbc hbe hbh hbi hbl hbr hbt hbu hcb hcc hce hch hci hcl hcr hct he- heb hec hee heh hei hel her het heu hhb hhc hhe hhh hhi hhl hhr hht hhu hib hic hie hih hii hil hir hit hiu hlb hlc hle hlh hli hll hlr hlt hlu hr- hrb hrc hre hrh hri hrl hrr hrt hru htb htc hte hth hti htl htr htt hub huc hue huh hui hul hur hut huu ibb ibc ibe ibh ibi ibl ibr ibt ibu icb icc ice ich ici icl icr ict icu ie- iec iee iei iel ier iet ihb ihc ihe ihh ihi ihl ihr iht ihu iib iic iie iih iii iil iir iit iiu il- ilb ilc ile ilh ili ill ilr ilt ilu ir- irb irc ire iri irl irr irt iru itb itc ite ith iti itl itt itu iu- iub iuc iue iui iur iut lbb lbc lbe lbh lbi lbl lbr lbt lbu lcb lcc lce lch lci lcl lcr lct lcu leb lec lee leh lei lel ler let leu lhb lhc lhh lhi lhr lht lhu lib lic lie lih lii lil lir lit liu llb llc lle lli lll llr llt llu lrb lrc lrh lri lrr lrt lru ltb ltc lte lth lti ltl ltr ltt ltu lub luc lue luh lui lul lur lut luu rbb rbc rbe rbh rbi rbl rbr rbt rbu rcb rcc rce rch rci rcl rcr rct rcu re- reb rec ree reh rei rel rer ret reu rh- rhb rhc rhe rhh rhi rhl rhr rht rhu rib ric rie rih rii ril rir rit rlc rle rlh rli rll rlr rlt rlu rrb rrc rrh rri rrl rrr rrt rru rtb rtc rte rti rtl rtr rtt rtu rub ruc rue ruh rui rur rut ruu tbb tbc tbe tbh tbi tbl tbr tbt tbu tcb tcc tce tch tci tcl tcr tct tcu te- teb tec tee teh tei tel ter tet teu th- thb thc the thh thi thl thr tht thu tib tic tie tih tii til tir tit tiu tlc tle tlh tli tll tlr tlt tlu trb trc tre trh tri trl trr trt tru ttb ttc tte tth tti ttl ttr ttt ttu tub tuc tue tuh tui tul tur tut tuu ubb ubc ube ubh ubi ubl ubr ubt ubu ucb ucc uce uch uci ucl ucr uct ucu ueb uec uee ueh uei uel uer uet uhb uhc uhe uhh uhi uhl uhr uht uhu 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 uth uti utl utr utt utu uuc uue uur uut uuu

bbbb bbch bbci bbeb bbet bblb bbrc bcbc bccc bcci bccl bcec bcer bcet bche bcie bcit bcru bctc bcuc bebb bebe bebi bech beci becu beeb beel beer beet behr beic beil beir beit bele beli bell belt belu berc bere beri berr bert beru betc bete beth beti bett betu beur bhcc bhel bher bhet bhie bhil bhir bhit bhrt bhur bhut bhuu bibb bibe bibi bibl bicc bice bich bici bieb biel bier biet bieu bihe bihi bihl bihu bile bili bill bilt bilu birb bire biri birl birr birt biru bitc bite bith bitt bitu blbt blcu bleb blee bleh blei blet bleu blic blir blit blrc blub blue blur blut brcb brce breb brec bree brei brel brer bret bric brie brih bril brit brrr brtc bruc brue bruh brut btcc btcl btec btie btrc btrt bttb bubb bube bubi bubu bucc buce buch buci bucu buel buer bueu buhe buhi buhl buhr buic buie buir buit buiu bulb bule buli bull bult bulu bur- burb bure burh buri burl burr burt buru but- bute buti butt cbbc cbcc cbce cbcl cbcr cbct cbcu cbec cbee cber cbet cbhl cbir cbit cblb cblc cbre cbrh cbrl cbrt cbtc cbtl ccbc cccb cccc ccci cccl cccu ccee ccel cche cchl cchr 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 cehl ceil cel- celc cele celi cell celt cer- cerc cere ceri cerl cert cet- cete ceti ceui chce chch chci cheb chec chee cheh chel cher chet cheu chib chic chie chih chil chir chit chiu chlc chlr chlt chrb chrc