-er bbb bbd bbe bbi bbm bbo bbr bbs bdb bdd bde bdi bdm bdo bdr bds be- beb bed bee bei bem beo ber bes bi- bib bid bie bii bim bio bir bis bmb bmd bme bmi bmm bmo bmr bms bob bod boe boi bom boo bor bos brb brd bre bri brm bro brr brs bsb bsd bse bsi bsm bso bsr bss dbb dbd dbe dbi dbm dbo dbr dbs ddb ddd dde ddi ddm ddo ddr dds de- deb ded dee dei dem deo der des di- dib did die dii dim dio dir dis dmb dmd dme dmi dmm dmo dmr dms dob dod doe doi dom doo dor dos drb drd dre dri drm dro drr drs dsb dsd dse dsi dsm dso dsr dss ebb ebd ebe ebi ebm ebo ebr ebs ed- edb edd ede edi edm edo edr eds eeb eed eee eem eeo eer ees eib eid eie eii eim eio eir eis em- emb emd eme emi emm emo emr ems eo- eob eod eoe eoi eom eoo eor eos erb erd ere eri erm ero err ers es- esb esd ese esi esm eso esr ess i-d ibb ibd ibe ibi ibm ibo ibr ibs idb idd ide idi idm ido idr ids ie- ied iee iei iem ier ies iib iid iie iii iim iio iir iis im- imb imd ime imi imm imo ims io- iob iod ioe ioi iom ioo ior ios ir- irb ird ire iri irm iro irr irs is- isb isd ise isi ism iso isr iss m-o m-r mbb mbd mbe mbi mbm mbo mbr mbs mdb mdd mde mdi mdm mdo mdr mds meb med mee mei mem meo mer mes mi- mib mid mie mii mim mio mir mis mmb mmd mme mmi mmm mmo mmr mms mob mod moe moi mom moo mor mos mrb mrd mre mri mrm mro mrr mrs msb msd mse msi msm mso msr mss o-i ob- obb obd obe obi obm obo obr obs odb odd ode odi odm odo odr ods oeb oed oee oei oem oeo oer oes oib oid oie oii oim oio oir ois om- omb omd ome omi omm omo omr oms oo- oob ood ooi oom ooo oor oos or- orb ord ore ori orm oro orr ors os- osb osd ose osi osm oso osr oss rbb rbd rbe rbi rbm rbo rbr rbs rdb rdd rde rdi rdm rdo rdr rds re- reb red ree rei rem reo rer res rib rid rie rii rim rio rir ris rmb rmd rme rmi rmm rmo rmr rms rob rod roe roi rom roo ror ros rrb rrd rri rrm rrr rrs rsb rsd rse rsi rsm rso rsr rss sbb sbd sbe sbi sbm sbo sbr sbs sdb sdd sde sdi sdm sdo sdr sds se- seb sed see sei sem seo ser ses sib sid sie sii sim sio sir sis smb smd sme smi smm smo smr sms sob sod soe soi som soo sor sos sr- srb srd sre sri srm sro srr srs ss- ssb ssd sse ssi ssm sso ssr sss