-er -th b-u bbb bbc bbe bbg bbh bbr bbt bbu bcb bcc bce bcg bch bcr bct bcu be- beb bec bee beg beh ber bet beu bgb bgc bge bgg bgh bgr bgt bgu bhb bhc bhe bhg bhh bhr bht bhu brb bre brg brh brr brt bru btb btc bte btg bth btr btt btu bub buc bue bug buh bur but buu c-- cbb cbc cbe cbg cbh cbr cbt cbu ccb ccc cce ccg cch ccr cct ccu ce- ceb cec cee ceg ceh cer cet ceu cgb cgc cge cgg cgh cgr cgt cgu ch- chb chc che chg chh chr cht chu crb crc cre crg crh crr crt cru ctb ctc cte ctg cth ctr ctt ctu cub cuc cue cug cuh cur cut cuu ebb ebc ebe ebg ebh ebr ebt ebu ec- ecb ecc ece ecg ech ecr ect ecu eeb eec eee eeg eer eet egb egc ege egg egh egr egt egu ehb ehc ehe ehg ehh ehr eht ehu erb erc ere erg erh err ert eru etb etc ete etg eth etr ett etu eu- eub euc eue eug eur eut gbc gbe gbg gbh gbr gbt gbu gcb gcc gce gcg gch gcr gct gcu ge- geb gec gee geg geh ger get geu ggb ggc ggg ggh ggr ggt ggu ghb ghc ghe ghg ghh ghr ght grb grc gre grg grh grr grt gru gtb gtc gte gtg gth gtr gtt gtu gu- gub guc gue gug gur gut guu hbb hbc hbe hbg hbh hbr hbt hbu hcb hcc hce hcg hch hcr hct he- heb hec hee heg heh her het heu hgb hgc hge hgg hgh hgr hgt hgu hhb hhc hhe hhg hhh hhr hht hhu hr- hrb hrc hre hrg hrh hrr hrt hru htb htc hte htg hth htr htt hub huc hue hug huh hur hut huu rbb rbc rbe rbg rbh rbr rbt rbu rcb rcc rce rcg rch rcr rct rcu re- reb rec ree reg reh rer ret reu rgb rgc rge rgg rgh rgr rgt rh- rhb rhc rhe rhg rhh rhr rht rhu rrb rrc rrg rrh rrr rrt rru rtb rtc rte rtg rtr rtt rtu rub ruc rue rug ruh rur rut ruu tbb tbc tbe tbg tbh tbr tbt tbu tcb tcc tce tcg tch tcr tct tcu te- teb tec tee teg teh ter tet teu tgb tgc tge tgg tgh tgr tgt tgu th- thb thc the thg thh thr tht thu trb trc tre trg trh trr trt tru ttb ttc tte ttg tth ttr ttt ttu tub tuc tue tug tuh tur tut tuu ubb ubc ube ubg ubh ubr ubt ubu ucb ucc uce ucg uch ucr uct ucu ueb uec uee ueg ueh uer uet ugb ugc uge ugg ugh ugr ugt ugu uhb uhc uhe uhh uhr uht uhu ur- urb urc ure urg urr urt uru utb utc ute uth utr utt utu uuc uue uug uur uut uuu

bbbb bbch bbeb bbet bbrc bbrg bcbc bcbg bccc bcec bcer bcet bche bcru bctc bcuc bebb bebe bech becu beeb beeg beer beet begg begu behr berc bere berg berr bert beru betc bete beth bett betu beur bght bhcc bher bhet bhrt bhur bhut bhuu brcb brce breb brec bree breg brer bret brrr brtc bruc brue brug bruh brut btcc btec btrc btrt bttb bubb bube bubu bucc buce buch bucu buer bueu buge bugg bugh buhe buhr bur- burb bure burg burh burr burt buru but- bute butt cbbc cbcc cbce cbcr cbct cbcu cbec cbee cber cbet cbgb cbre cbrh cbrt cbtc ccbc cccb cccc cccu ccee ccgc ccgt cche cchr ccrc ccre ccrg ccrt cctb cctc cctt ccuc ccut cebu cec- cece cect ceeb ceec cege cer- cerc cere cert cet- cete cgcc cgcg cger cgtu chce chch cheb chec chee cheh cher chet cheu chgb chge chrb chrc chrr chrt chtr chtt chub chug chur chut crbc crbu crcc crce crcr cre- creb crec cree creg creh cret creu crrt crtc crub crue crug crut ctec ctge ctgu ctrc cub- cubb cube cucc cuce cuer curb cure curr curt cut- cutc cute cuth cutt ebbc ebbr ebcc eber ebru ebur ecbc ecbe eccb eccc ecce ecct eche echt ecrc ecrr ecru ect- ectc ecth eeee eerc eerg eetc eete eeth eetu egbe egbu egcc egcg egcr egec egee eger eggb egge eggh eghe eghh egre egte ehcc eheh eher eheu ehre ehte erbb erbe ercc erce erch ereb erec erer eret erg- ergg ergh erhc erhu errc erre erth ertu erub eruc eruh erur etbc etbr etcc etch etec etee eter eth- ethe etre ette ettu eubc euch euer euge eugh eur- eurc eure eurt euth gc-c gcbc gccc gcet gcrg gctc gebe gece geer geet gege gegg geht gehu gerb gere gert geru getb gete getg geth gett geue ggbt gggg gghg ghee gheg ghug grbr grcc grce greb grec gree greg gret greu grrr grtc grub grue grug grur grut gtbr gtcr gubb gubu guch guer gugb guge gugg gugh gugu guhe guhr gurb gure gurg gurh gurr gurt guru gute guth gutt gutu hbtu hcbc hccb hccc hcch hcgh hebb hebe hebr hech hect heeb heeg heer heet hege hegg hegh hehe herb herc here herg herr hert heru hete heth hett hetu heue heug heur hggc hgtc hhgg hhhh hree hrrc hrtb hrte htcc htet httr hubb hube huch hucu huer huet huge hugg hugh huhu hure hurr hurt huru hute huth hutt hutu huub rbbb rbbr rbgh rcbc rccb rccc rcet rcgc rchb rcrg rctc rctg rebb rebe rebu recc rece rech recr rect recu reeb reet rege regr regt regu rehb rehe reht rere rerg rert reru rete reth retr rett reue reut reuu rgbe rgtr rhbg rhce rhcg rheb rhee rhet rhue rhug rrrr rtcc rtce rtcg rtee rubb rube rubu ruce ruch ruct ruer ruet