-er bbb bbe bbi bbm bbn bbr be- beb bee bei bem ben ber bi- bib bie bii bim bin bir bmb bme bmi bmm bmn bmr bnb bne bni bnn bnr brb bre bri brm brn brr ebb ebe ebi ebm ebn ebr eeb eee eem een eer eib eie eii eim ein eir em- emb eme emi emm emn emr en- enb ene eni enm enn enr erb ere eri erm ern err ibb ibe ibi ibm ibn ibr ie- iee iei iem ien ier iib iie iii iim iin iir im- imb ime imi imm imn in- inb ine ini inm inn inr ir- irb ire iri irm irn irr m-r mbb mbe mbi mbm mbr meb mee mei mem men mer mi- mib mie mii mim min mir mmb mme mmi mmm mmn mmr mnb mne mni mnm mnn mnr mrb mre mri mrm mrn mrr n-i nbb nbe nbi nbm nbn nbr ne- neb nee nei nem nen ner nib nie nii nim nin nir nmb nme nmi nmm nmn nmr nnb nne nni nnm nnn nrb nre nri nrm nrn nrr rbb rbe rbi rbm rbn rbr re- reb ree rei rem ren rer rib rie rii rim rin rir rmb rme rmi rmm rmn rmr rnb rni rnm rnn rnr rrb rri rrm rrn rrr