-er -ic c-- ccc ccd cce cci ccm cco ccr ccs cct cdc cdd cde cdi cdm cdo cdr cds cdt ce- cec ced cee cei cem ceo cer ces cet ci- cic cid cie cii cim cio cir cis cit cmc cmd cme cmi cmm cmo cmr cms cmt co- coc cod coe coi com coo cor cos cot crc crd cre cri crm cro crr crs crt csc csd cse csi csm cso csr css cst ctc ctd cte cti ctm cto ctr cts ctt dcc dcd dce dci dcm dco dcr dcs dct ddc ddd dde ddi ddm ddo ddr dds ddt de- dec ded dee dei dem deo der des det di- dic did die dii dim dio dir dis dit dmc dmd dme dmi dmm dmo dmr dms dmt doc dod doe doi dom doo dor dos dot drc drd dre dri drm dro drr drs drt dsc dsd dse dsi dsm dso dsr dss dst dtc dtd dte dti dtm dto dtr dts dtt ec- ecc ecd ece eci ecm eco ecr ecs ect ed- edc edd ede edi edm edo edr eds edt eec eed eee eem eeo eer ees eet eic eid eie eii eim eio eir eis eit em- emc emd eme emi emm emo emr ems emt eo- eoc eod eoe eoi eom eoo eor eos eot erc erd ere eri erm ero err ers ert es- esc esd ese esi esm eso esr ess est etc etd ete eti etm eto etr ets ett i-d icc icd ice ici icm ico icr ics ict idc idd ide idi idm ido idr ids idt ie- iec ied iee iei iem ier ies iet iic iid iie iii iim iio iir iis iit im- imc imd ime imi imm imo ims imt io- ioc iod ioe ioi iom ioo ior ios iot ir- irc ird ire iri irm iro irr irs irt is- isc isd ise isi ism iso isr iss ist itc itd ite iti itm ito its itt m-o m-r mc- mcc mcd mce mci mcm mco mcr mcs mct mdc mdd mde mdi mdm mdo mdr mds mdt mec med mee mei mem meo mer mes met mi- mic mid mie mii mim mio mir mis mit mmc mmd mme mmi mmm mmo mmr mms mmt moc mod moe moi mom moo mor mos mot mrc mrd mre mri mrm mro mrr mrs mrt msc msd mse msi msm mso msr mss mst mtc mtd mte mti mtm mto mtr mts mtt o-i oc- occ ocd oci ocm oco ocr ocs oct odc odd ode odi odm odo odr ods odt oec oed oee oei oem oeo oer oes oet oic oid oie oii oim oio oir ois oit om- omc omd ome omi omm omo omr oms omt oo- ooc ood ooi oom ooo oor oos oot or- orc ord ore ori orm oro orr ors ort os- osc osd ose osi osm oso osr oss ost ot- otc otd ote oti otm oto otr ots ott rcc rcd rce rci rcm rco rcr rcs rct rdc rdd rde rdi rdm rdo rdr rds rdt re- rec red ree rei rem reo rer res ret ric rid rie rii rim rio rir ris rit rmc rmd rme rmi rmm rmo rmr rms rmt roc rod roe roi rom roo ror ros rot rrc rrd rri rrm rrr rrs rrt rsc rsd rse rsi rsm rso rsr rss rst rtc rtd rte rti rtm rto rtr rts rtt scc scd sce sci scm sco scr scs sct sdc sdd sde sdi sdm sdo sdr sds sdt se- sec sed see sei sem seo ser ses set sic sid sie sii sim sio sir sis sit smc smd sme smi smm smo smr sms smt soc sod soe soi som soo sor sos sot sr- src srd sre sri srm sro srr srs srt ss- ssc ssd sse ssi ssm sso ssr sss sst stc std ste sti stm sto str sts stt tcc tcd tce tci tcm tco tcr tcs tct tdc tdd tde tdi tdm tdo tdr tds tdt te- tec ted tee tei tem teo ter tes tet tic tid tie tii tim tio tir tis tit tmc tmd tme tmi tmm tmo tmr tms tmt to- toc tod toe toi tom too tor tos tot trc trd tre tri trm tro trr trs trt tsc tsd tse tsi tsm tso tsr tss tst ttc ttd tte tti ttm tto ttr tts ttt