bbb bbe bbi bbm bbo bbs bbt be- beb bee bei bem beo bes bet bi- bib bie bii bim bio bis bit bmb bme bmi bmm bmo bms bmt bob boe boi bom boo bos bot bsb bse bsi bsm bso bss bst btb bte bti btm bto bts btt ebb ebe ebi ebm ebo ebs ebt eeb eee eem eeo ees eet eib eie eii eim eio eis eit em- emb eme emi emm emo ems emt eo- eob eoe eoi eom eoo eos eot es- esb ese esi esm eso ess est etb ete eti etm eto ets ett ibb ibe ibi ibm ibo ibs ibt ie- iee iei iem ies iet iib iie iii iim iio iis iit im- imb ime imi imm imo ims imt io- iob ioe ioi iom ioo ios iot is- isb ise isi ism iso iss ist itb ite iti itm ito its itt m-o mbb mbe mbi mbm mbo mbs mbt meb mee mei mem meo mes met mi- mib mie mii mim mio mis mit mmb mme mmi mmm mmo mms mmt mob moe moi mom moo mos mot msb mse msi msm mso mss mst mtb mte mti mtm mto mts mtt o-i ob- obb obe obi obm obo obs obt oeb oee oei oem oeo oes oet oib oie oii oim oio ois oit om- omb ome omi omm omo oms omt oo- oob ooi oom ooo oos oot os- osb ose osi osm oso oss ost ot- otb ote oti otm oto ots ott sbb sbe sbi sbm sbo sbs sbt se- seb see sei sem seo ses set sib sie sii sim sio sis sit smb sme smi smm smo sms smt sob soe soi som soo sos sot ss- ssb sse ssi ssm sso sss sst stb ste sti stm sto sts stt tbb tbe tbi tbm tbo tbs tbt te- teb tee tei tem teo tes tet tib tie tii tim tio tis tit tmb tme tmi tmm tmo tms tmt to- tob toe toi tom too tos tot tsb tse tsi tsm tso tss tst ttb tte tti ttm tto tts ttt