-er b-p bbb bbc bbe bbh bbl bbp bbr bbs bcb bcc bce bch bcl bcp bcr bcs be- beb bec bee beh bel bep ber bes bhb bhc bhe bhh bhl bhp bhr bhs blb blc ble blh bll blp blr bls bpb bpc bpe bph bpl bpp bpr bps brb bre brh brl brp brr brs bsb bsc bse bsh bsl bsp bsr bss c-- cbb cbc cbe cbh cbl cbp cbr cbs ccb ccc cce cch ccl ccp ccr ccs ce- ceb cec cee ceh cel cep cer ces ch- chb chc che chh chl chp chr chs cl- clb clc cle clh cll clp clr cls cpb cpc cpe cph cpl cpp cpr cps crb crc cre crh crl crp crr crs csb csc cse csh csl csp csr css ebb ebc ebe ebh ebl ebp ebr ebs ec- ecb ecc ece ech ecl ecr ecs eeb eec eee eel eep eer ees ehb ehc ehe ehh ehl ehp ehr ehs elb elc ele elh ell elp elr els ep- epb epc epe eph epl epp epr eps erb erc ere erh erl erp err ers es- esb esc ese esh esl esp esr ess hbb hbc hbe hbh hbl hbp hbr hbs hcb hcc hce hch hcl hcp hcr hcs he- heb hec hee heh hel hep her hes hhb hhc hhe hhh hhl hhp hhr hhs hlb hlc hle hlh hll hlp hlr hls hpb hpc hpe hph hpl hpp hpr hps hr- hrb hrc hre hrh hrl hrp hrr hrs hsb hsc hse hsh hsl hsp hsr hss l-p lbb lbc lbe lbh lbl lbp lbr lbs lcb lcc lce lch lcl lcp lcr lcs leb lec lee leh lel lep ler les lhb lhc lhh lhp lhr lhs llb llc lle lll llp llr lls lpb lpc lpe lph lpl lpp lpr lps lrb lrc lrh lrp lrr lrs lsb lsc lse lsh lsl lsp lsr lss p-p pbb pbc pbe pbl pbp pbr pbs pcb pcc pce pch pcl pcp pcr pcs peb pec pee peh pel pep per pes phb phc phe phl php phr phs plb plc ple plh pll plp plr pls ppb ppc ppe pph ppl ppp ppr pps prb prc pre prh prl prp prr prs ps- psb psc pse psh psl psp psr pss rbb rbc rbe rbh rbl rbp rbr rbs rcb rcc rce rch rcl rcp rcr rcs re- reb rec ree reh rel rep rer res rh- rhb rhc rhe rhh rhl rhp rhr rhs rlc rle rlh rll rlp rlr rls rpb rpc rpe rph rpl rpp rpr rps rrb rrc rrh rrl rrp rrr rrs rsb rsc rse rsh rsl rsp rsr rss sbb sbc sbe sbh sbl sbp sbr sbs scb scc sce sch scl scp scr scs se- seb sec see seh sel sep ser ses sh- shb shc she shh shl shp shr shs slb slc sle slh sll slp slr sls spb spc spe sph spl spp spr sps sr- srb src sre srh srl srp srr srs ss- ssb ssc sse ssh ssl ssp ssr sss

bbbb bbbs bbch bbeb bbhs bblb bbls bbpr bbrc bcbc bcbp bcbs bccc bccl bccs bcec bcer bces bche bchs bcpl bcpp bcps bcrs bcsc bcsl bcss bebb bebe bech becs beeb beel beep beer bees behr behs bele bell belp bels berc bere berr bers bes- bese besh bess bhcc bhel bher bhhs bhpl bleb blee bleh bles blhs blls blrc blsp blss bpcp bpel bphc bphs bprc brcb brce breb brec bree brel brep brer bres brhs brlp brls brrr brrs brsb brsr bscp bscs bseb bsec bsee bser bses bshs bslc bspp bspr bssc bsse cbbc cbbs cbcc cbce cbcl cbcp cbcr cbcs cbec cbee cber cbhl cbhs cblb cblc cbpc cbpp cbre cbrh cbrl cbsc cbse ccbc cccb cccc cccl cccp cccs ccee ccel cche cchl cchp cchr cchs cclc ccls ccpe ccpl ccpp ccpr ccps ccrc ccre ccrl ccrp ccrs ccsl ccsp ccss cebp cebs cec- cece cecp cecs ceeb ceec ceel cees cehl cehs cel- celc cele cell cels cepc cepe ceph cepp cepr ceps cer- cerc cere cerl cerp cers cesc cese cesp cesr cess chbp chce chch chcp chcs cheb chec chee cheh chel chep cher ches chhs chlc chlp chlr chpp chpr chrb chrc chrp chrr chrs chsc chse chsh chsr clec clee clep cler cles clhs clpb clpp clrs clsc cpbc cpce cpcs cpeb cpep cper cphl cphs cplc cpls cpps cpre cprs cpsc cpsl cpsr crbc crcc crce crcr cre- creb crec cree creh crep cres crhs crls crpc crps crsp crss cscb cscc csce csch cscl cscr cscs csec csee cseh csep cser cshl cshp cshs cslp cslr cspb cspc cspe csps csrc csrs csse cssr e-cl ebbc ebbr ebbs ebcc ebel eber ebes ebhs ecbc ecbe eccb eccc ecce eccl eces eche echl echs ecpp ecrc ecrl ecrr ecsc ecse ecsp ecss eecs eeee eees eehs eele eels eeps eerc eers eese ehcc eheh ehel eher ehhs ehle ehre el-b el-p elbe elcb elce elch elec elee eleh eler eles elhs elle ells elpe elph else epcc epch epec epee eper epes eph- ephs eple epll eppc eppp epps eprb eprp eprs epsc epsp epss erbb erbe ercc erce erch ercp ereb erec erel erer eres erhc erhs erle erll erpe erps errc erre errs erse ersh esbs escb esce esch escr escs esee esel eser eses eshs eslp espc espe espp esps esse essh essl essp hbbs hbes hbhs hbrs hbss hcbc hcbs hccb hccc hcch hccs hchs hcpc hcps hcrp hcsc hcss hebb hebe hebr hech hecs heeb heel heep heer hees hehe hehs hele hell help hels hepc hepe hepl hepp heps herb herc here herl herp herr hers hesc hesh hesp hess hhcl hhhh hhhs hhpc hler hlhs hlss hpcc hphs hpls hppe hpps hpsc hpse hpss hrbl hree hrhs hrpc hrpp hrps hrrc hsbc hscc hses hshs hsls hsps hsse hssp