-er -ic bbb bbc bbd bbe bbi bbm bbo bbr bbs bbt bcb bcc bcd bce bci bcm bco bcr bcs bct bdb bdc bdd bde bdi bdm bdo bdr bds bdt be- beb bec bed bee bei bem beo ber bes bet bi- bib bic bid bie bii bim bio bir bis bit bmb bmc bmd bme bmi bmm bmo bmr bms bmt bob boc bod boe boi bom boo bor bos bot brb brd bre bri brm bro brr brs brt bsb bsc bsd bse bsi bsm bso bsr bss bst btb btc btd bte bti btm bto btr bts btt c-- cbb cbc cbd cbe cbi cbm cbo cbr cbs cbt ccb ccc ccd cce cci ccm cco ccr ccs cct cdb cdc cdd cde cdi cdm cdo cdr cds cdt ce- ceb cec ced cee cei cem ceo cer ces cet ci- cib cic cid cie cii cim cio cir cis cit cmb cmc cmd cme cmi cmm cmo cmr cms cmt co- cob coc cod coe coi com coo cor cos cot crb crc crd cre cri crm cro crr crs crt csb csc csd cse csi csm cso csr css cst ctb ctc ctd cte cti ctm cto ctr cts ctt dbb dbc dbd dbe dbi dbm dbo dbr dbs dbt dcb dcc dcd dce dci dcm dco dcr dcs dct ddb ddc ddd dde ddi ddm ddo ddr dds ddt de- deb dec ded dee dei dem deo der des det di- dib dic did die dii dim dio dir dis dit dmb dmc dmd dme dmi dmm dmo dmr dms dmt dob doc dod doe doi dom doo dor dos dot drb drc drd dre dri drm dro drr drs drt dsb dsc dsd dse dsi dsm dso dsr dss dst dtb dtc dtd dte dti dtm dto dtr dts dtt ebb ebc ebd ebe ebi ebm ebo ebr ebs ebt ec- ecb ecc ecd ece eci ecm eco ecr ecs ect ed- edb edc edd ede edi edm edo edr eds edt eeb eec eed eee eem eeo eer ees eet eib eic eid eie eii eim eio eir eis eit em- emb emc emd eme emi emm emo emr ems emt eo- eob eoc eod eoe eoi eom eoo eor eos eot erb erc erd ere eri erm ero err ers ert es- esb esc esd ese esi esm eso esr ess est etb etc etd ete eti etm eto etr ets ett i-d ibb ibc ibd ibe ibi ibm ibo ibr ibs ibt icb icc icd ice ici icm ico icr ics ict idb idc idd ide idi idm ido idr ids idt ie- iec ied iee iei iem ier ies iet iib iic iid iie iii iim iio iir iis iit im- imb imc imd ime imi imm imo ims imt io- iob ioc iod ioe ioi iom ioo ior ios iot ir- irb irc ird ire iri irm iro irr irs irt is- isb isc isd ise isi ism iso isr iss ist itb itc itd ite iti itm ito its itt m-o m-r mbb mbc mbd mbe mbi mbm mbo mbr mbs mbt mc- mcb mcc mcd mce mci mcm mco mcr mcs mct mdb mdc mdd mde mdi mdm mdo mdr mds mdt meb mec med mee mei mem meo mer mes met mi- mib mic mid mie mii mim mio mir mis mit mmb mmc mmd mme mmi mmm mmo mmr mms mmt mob moc mod moe moi mom moo mor mos mot mrb mrc mrd mre mri mrm mro mrr mrs mrt msb msc msd mse msi msm mso msr mss mst mtb mtc mtd mte mti mtm mto mtr mts mtt o-i ob- obb obc obd obe obi obm obo obr obs obt oc- ocb occ ocd oci ocm oco ocr ocs oct odb odc odd ode odi odm odo odr ods odt oeb oec oed oee oei oem oeo oer oes oet oib oic oid oie oii oim oio oir ois oit om- omb omc omd ome omi omm omo omr oms omt oo- oob ooc ood ooi oom ooo oor oos oot or- orb orc ord ore ori orm oro orr ors ort os- osb osc osd ose osi osm oso osr oss ost ot- otb otc otd ote oti otm oto otr ots ott rbb rbc rbd rbe rbi rbm rbo rbr rbs rbt rcb rcc rcd rce rci rcm rco rcr rcs rct rdb rdc rdd rde rdi rdm rdo rdr rds rdt re- reb rec red ree rei rem reo rer res ret rib ric rid rie rii rim rio rir ris rit rmb rmc rmd rme rmi rmm rmo rmr rms rmt rob roc rod roe roi rom roo ror ros rot rrb rrc rrd rri rrm rrr rrs rrt rsb rsc rsd rse rsi rsm rso rsr rss rst rtb rtc rtd rte rti rtm rto rtr rts rtt sbb sbc sbd sbe sbi sbm sbo sbr sbs sbt scb scc scd sce sci scm sco scr scs sct sdb sdc sdd sde sdi sdm sdo sdr sds sdt se- seb sec sed see sei sem seo ser ses set sib sic sid sie sii sim sio sir sis sit smb smc smd sme smi smm smo smr sms smt sob soc sod soe soi som soo sor sos sot sr- srb src srd sre sri srm sro srr srs srt ss- ssb ssc ssd sse ssi ssm sso ssr sss sst stb stc std ste sti stm sto str sts stt tbb tbc tbd tbe tbi tbm tbo tbr tbs tbt tcb tcc tcd tce tci tcm tco tcr tcs tct tdb tdc tdd tde tdi tdm tdo tdr tds tdt te- teb tec ted tee tei tem teo ter tes tet tib tic tid tie tii tim tio tir tis tit tmb tmc tmd tme tmi tmm tmo tmr tms tmt to- tob toc tod toe toi tom too tor tos tot trb