bbbb bbeb bblb bbpr bbrc bcbc bcbp bccc bccl bcec bcer bcpl bcpp bebb bebe beeb beel beep beer bele bell belp berc bere berr bleb blee blrc bpcp bpel bprc brcb brce breb brec bree brel brep brer brlp brrr cbbc cbcc cbce cbcl cbcp cbcr cbec cbee cber cblb cblc cbpc cbpp cbre cbrl ccbc cccb cccc cccl cccp ccee ccel cclc ccpe ccpl ccpp ccpr ccrc ccre ccrl ccrp cebp cec- cece cecp ceeb ceec ceel cel- celc cele cell cepc cepe cepp cepr cer- cerc cere cerl cerp clec clee clep cler clpb clpp cpbc cpce cpeb cpep cper cplc cpre crbc crcc crce crcr cre- creb crec cree crep crpc e-cl ebbc ebbr ebcc ebel eber ecbc ecbe eccb eccc ecce eccl ecpp ecrc ecrl ecrr eeee eele eerc el-b el-p elbe elcb elce elec elee eler elle elpe epcc epec epee eper eple epll eppc eppp eprb eprp erbb erbe ercc erce ercp ereb erec erel erer erle erll erpe errc erre lbcc lblr lcbc lccc lcce lcer lcpc lcpl lcrl lece leel leep leer lele lell lepe lepp lerc lere lerp llcc lllc llll lpec lppl lprp lrrc lrrr pbcc pcbc pccc pcce pccl pcep pcer pcll pcpb pcpp pcrc pcre pcrl pebl pece pecl pecr peec peel peep peer pel- pelb pele pell pepe per- perc pere perl perp perr plbr plcc plce ple- pleb plec plee plpp ppcc pper pple pppp pprc prbc prcc prcp pre- preb prec pree prel prep prle prlr rbbb rbbr rbcl rble rcbc rccb rccc rcep rcle rebb rebe recc rece recp recr reeb reel reep relb rele rell relp repe repl repp repr rere rlee rrle rrrr