bbb bbl bbm bbn bbq bbr bbs blb bll blm bln blq blr bls bmb bml bmm bmn bmq bmr bms bnb bnl bnn bnr bns brb brl brm brn brq brr brs bsb bsl bsm bsn bsr bss lbb lbl lbm lbr lbs llb lll llm lln llq llr lls lmb lml lmm lmn lmq lmr lms lnb lnl lnm lnn lnr lns lqr lrb lrm lrn lrr lrs lsb lsl lsm lsn lsq lsr lss m-r mbb mbl mbm mbq mbr mbs mlb mll mlm mln mlq mlr mls mmb mml mmm mmn mmr mms mnb mnl mnm mnn mnr mns mqb mql mqr mrb mrl mrm mrn mrq mrr mrs msb msl msm msn msq msr mss nbb nbl nbm nbn nbr nbs nlb nll nlm nln nlq nlr nls nmb nml nmm nmn nmr nms nnb nnl nnm nnn nns nqs nrb nrl nrm nrn nrr nrs nsb nsl nsm nsn nsr nss qbq qbs qlm qls qml qmr qms qnb qns qqq qrb qrl qrm qrs qsl qsm qsr rbb rbl rbm rbn rbr rbs rll rlm rln rlr rls rmb rml rmm rmn rmq rmr rms rnb rnm rnn rnr rns rqm rqn rqs rrb rrl rrm rrn rrq rrr rrs rsb rsl rsm rsn rsq rsr rss sbb sbl sbm sbn sbq sbr sbs slb sll slm sln slq slr sls smb sml smm smn smr sms snb snl snm snn snr sns sql sqm sqn sqq sqr sqs sr- srb srl srm srn srq srr srs ss- ssb ssl ssm ssn ssq ssr sss