bbbb bbch bbeb bblb bcbc bcbp bccc bccl bcec bche bcpl bcpp bebb bebe bech beeb beel beep bele bell belp bhcc bhel bhpl bleb blee bleh bpcp bpel bphc cbbc cbcc cbce cbcl cbcp cbec cbee cbhl cblb cblc cbpc cbpp ccbc cccb cccc cccl cccp ccee ccel cche cchl cchp cclc ccpe ccpl ccpp cebp cec- cece cecp ceeb ceec ceel cehl cel- celc cele cell cepc cepe ceph cepp chbp chce chch chcp cheb chec chee cheh chel chep chlc chlp chpp clec clee clep clpb clpp cpbc cpce cpeb cpep cphl cplc e-cl ebbc ebcc ebel ecbc ecbe eccb eccc ecce eccl eche echl ecpp eeee eele ehcc eheh ehel ehle el-b el-p elbe elcb elce elch elec elee eleh elle elpe elph epcc epch epec epee eph- eple epll eppc eppp hcbc hccb hccc hcch hcpc hebb hebe hech heeb heel heep hehe hele hell help hepc hepe hepl hepp hhcl hhhh hhpc hpcc hppe lbcc lcbc lccc lcce lchc lcpc lcpl lece lech leel leep lehe lele lell lepe lepp lhec lhee lhhh llcc lllc llll lpec lppl pbcc pcbc pccc pcce pccl pcep pchp pcll pcpb pcpp pebl pece pech pecl peec peel peep pehe pel- pelb pele pell pepe phcc phe- plcc plce plch ple- pleb plec plee plpp ppcc pple pppp