-er -th b-u bbb bbc bbe bbh bbl bbr bbs bbt bbu bcb bcc bce bch bcl bcr bcs bct bcu be- beb bec bee beh bel ber bes bet beu bhb bhc bhe bhh bhl bhr bhs bht bhu blb blc ble blh bll blr bls blt blu brb bre brh brl brr brs brt bru bsb bsc bse bsh bsl bsr bss bst bsu btb btc bte bth btl btr bts btt btu bub buc bue buh bul bur bus but buu c-- cbb cbc cbe cbh cbl cbr cbs cbt cbu ccb ccc cce cch ccl ccr ccs cct ccu ce- ceb cec cee ceh cel cer ces cet ceu ch- chb chc che chh chl chr chs cht chu cl- clb clc cle clh cll clr cls clt clu crb crc cre crh crl crr crs crt cru csb csc cse csh csl csr css cst csu ctb ctc cte cth ctl ctr cts ctt ctu cub cuc cue cuh cul cur cus cut cuu ebb ebc ebe ebh ebl ebr ebs ebt ebu ec- ecb ecc ece ech ecl ecr ecs ect ecu eeb eec eee eel eer ees eet ehb ehc ehe ehh ehl ehr ehs eht ehu elb elc ele elh ell elr els elt elu erb erc ere erh erl err ers ert eru es- esb esc ese esh esl esr ess est esu etb etc ete eth etl etr ets ett etu eu- eub euc eue eul eur eus eut hbb hbc hbe hbh hbl hbr hbs hbt hbu hcb hcc hce hch hcl hcr hcs hct he- heb hec hee heh hel her hes het heu hhb hhc hhe hhh hhl hhr hhs hht hhu hlb hlc hle hlh hll hlr hls hlt hlu hr- hrb hrc hre hrh hrl hrr hrs hrt hru hsb hsc hse hsh hsl hsr hss hst hsu htb htc hte hth htl htr hts htt hub huc hue huh hul hur hus hut huu lbb lbc lbe lbh lbl lbr lbs lbt lbu lcb lcc lce lch lcl lcr lcs lct lcu leb lec lee leh lel ler les let leu lhb lhc lhh lhr lhs lht lhu llb llc lle lll llr lls llt llu lrb lrc lrh lrr lrs lrt lru lsb lsc lse lsh lsl lsr lss lst lsu ltb ltc lte lth ltl ltr lts ltt ltu lub luc lue luh lul lur lus lut luu rbb rbc rbe rbh rbl rbr rbs rbt rbu rcb rcc rce rch rcl rcr rcs rct rcu re- reb rec ree reh rel rer res ret reu rh- rhb rhc rhe rhh rhl rhr rhs rht rhu rlc rle rlh rll rlr rls rlt rlu rrb rrc rrh rrl rrr rrs rrt rru rsb rsc rse rsh rsl rsr rss rst rsu rtb rtc rte rtl rtr rts rtt rtu rub ruc rue ruh rur rus rut ruu sbb sbc sbe sbh sbl sbr sbs sbt sbu scb scc sce sch scl scr scs sct scu se- seb sec see seh sel ser ses set seu sh- shb shc she shh shl shr shs sht shu slb slc sle slh sll slr sls slt slu sr- srb src sre srh srl srr srs srt ss- ssb ssc sse ssh ssl ssr sss sst ssu stb stc ste sth stl str sts stt stu sub suc sue suh sul sur sus sut suu tbb tbc tbe tbh tbl tbr tbs tbt tbu tcb tcc tce tch tcl tcr tcs tct tcu te- teb tec tee teh tel ter tes tet teu th- thb thc the thh thl thr ths tht thu tlc tle tlh tll tlr tls tlt tlu trb trc tre trh trl trr trs trt tru tsb tsc tse tsh tsl tsr tss tst tsu ttb ttc tte tth ttl ttr tts ttt ttu tub tuc tue tuh tul tur tus tut tuu ubb ubc ube ubh ubl ubr ubs ubt ubu ucb ucc uce uch ucl ucr ucs uct ucu ueb uec uee ueh uel uer ues uet uhb uhc uhe uhh uhl uhr uhs uht uhu ulb ulc ule ull ulr uls ult ulu ur- urb urc ure url urr urs urt uru usb usc use ush usl usr uss ust usu utb utc ute uth utl utr uts utt utu uuc uue uur uus uut uuu

bbbb bbbs bbch bbeb bbet bbhs bblb bbls bbrc bcbc bcbs bccc bccl bccs bcec bcer bces bcet bche bchs bcrs bcru bcsc bcsl bcss bctc bcts bcuc bebb bebe bech becs becu beeb beel beer bees beet behr behs bele bell bels belt belu berc bere berr bers bert beru bes- bese besh bess best betc bete beth bets bett betu beur bhcc bhel bher bhet bhhs bhrt bhur bhut bhuu blbt blcu bleb blee bleh bles blet bleu blhs blls blrc blss blst blts blub blue blur blus blut brcb brce breb brec bree brel brer bres bret brhs brls brrr brrs brsb brsr brst brtc bruc brue bruh brus brut bscs bseb bsec bsee bser bses bset bshs bslc bssc bsse bsts btcc btcl btcs btec bths btrc btrt btss bttb btus bubb bube bubs bubu bucc buce buch bucs bucu buel buer bueu buhe buhl buhr buhs bulb bule bull buls bult bulu bur- burb bure burh burl burr burs burt buru busc buse bush buss bust busu but- bute buts butt buus cbbc cbbs cbcc cbce cbcl cbcr cbcs cbct cbcu cbec cbee cber cbet cbhl cbhs cblb cblc cbre cbrh cbrl cbrt cbsc cbse cbtc cbtl cbus ccbc cccb cccc cccl cccs cccu ccee ccel cche cchl cchr cchs cclc ccls ccrc ccre ccrl ccrs ccrt ccsl ccss ccst cctb cctc cctl cctt ccuc ccus ccut cebs cebu cec- cece cecs cect ceeb ceec ceel cees cehl cehs cel- celc cele cell cels celt cer- cerc cere cerl cers cert cesc cese cesr cess cest cet- cete cets chce chch chcs cheb chec chee cheh chel cher