bbb bbl bbm bbn bbr blb bll blm bln blr bmb bml bmm bmn bmr bnb bnl bnn bnr brb brl brm brn brr lbb lbl lbm lbr llb lll llm lln llr lmb lml lmm lmn lmr lnb lnl lnm lnn lnr lrb lrm lrn lrr m-r mbb mbl mbm mbr mlb mll mlm mln mlr mmb mml mmm mmn mmr mnb mnl mnm mnn mnr mrb mrl mrm mrn mrr nbb nbl nbm nbn nbr nlb nll nlm nln nlr nmb nml nmm nmn nmr nnb nnl nnm nnn nrb nrl nrm nrn nrr rbb rbl rbm rbn rbr rll rlm rln rlr rmb rml rmm rmn rmr rnb rnm rnn rnr rrb rrl rrm rrn rrr

bbbb bblb bnml bnrr brrm brrr lblr llll lmln lmmr lrrr mlnr mmmm mnbb mrbb mrbm mrln mrml nlrb nmml nnnn nrlb nrml nrrl rbbb rbbr rlml rmll rnbr rrrr

brmmm brrrr mmmmm rmnmn

bbbbbb

bbbbbbb

bbbbbbbb

mmmmmmmmmmmm

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