-er bbb bbd bbe bbi bbm bbr bdb bdd bde bdi bdm bdr be- beb bed bee bei bem ber bi- bib bid bie bii bim bir bmb bmd bme bmi bmm bmr brb brd bre bri brm brr dbb dbd dbe dbi dbm dbr ddb ddd dde ddi ddm ddr de- deb ded dee dei dem der di- dib did die dii dim dir dmb dmd dme dmi dmm dmr drb drd dre dri drm drr ebb ebd ebe ebi ebm ebr ed- edb edd ede edi edm edr eeb eed eee eem eer eib eid eie eii eim eir em- emb emd eme emi emm emr erb erd ere eri erm err i-d ibb ibd ibe ibi ibm ibr idb idd ide idi idm idr ie- ied iee iei iem ier iib iid iie iii iim iir im- imb imd ime imi imm ir- irb ird ire iri irm irr m-r mbb mbd mbe mbi mbm mbr mdb mdd mde mdi mdm mdr meb med mee mei mem mer mi- mib mid mie mii mim mir mmb mmd mme mmi mmm mmr mrb mrd mre mri mrm mrr rbb rbd rbe rbi rbm rbr rdb rdd rde rdi rdm rdr re- reb red ree rei rem rer rib rid rie rii rim rir rmb rmd rme rmi rmm rmr rrb rrd rri rrm rrr