-er -ic c-- ccc ccd cce cci ccm ccr ccs cct cdc cdd cde cdi cdm cdr cds cdt ce- cec ced cee cei cem cer ces cet ci- cic cid cie cii cim cir cis cit cmc cmd cme cmi cmm cmr cms cmt crc crd cre cri crm crr crs crt csc csd cse csi csm csr css cst ctc ctd cte cti ctm ctr cts ctt dcc dcd dce dci dcm dcr dcs dct ddc ddd dde ddi ddm ddr dds ddt de- dec ded dee dei dem der des det di- dic did die dii dim dir dis dit dmc dmd dme dmi dmm dmr dms dmt drc drd dre dri drm drr drs drt dsc dsd dse dsi dsm dsr dss dst dtc dtd dte dti dtm dtr dts dtt ec- ecc ecd ece eci ecm ecr ecs ect ed- edc edd ede edi edm edr eds edt eec eed eee eem eer ees eet eic eid eie eii eim eir eis eit em- emc emd eme emi emm emr ems emt erc erd ere eri erm err ers ert es- esc esd ese esi esm esr ess est etc etd ete eti etm etr ets ett i-d icc icd ice ici icm icr ics ict idc idd ide idi idm idr ids idt ie- iec ied iee iei iem ier ies iet iic iid iie iii iim iir iis iit im- imc imd ime imi imm ims imt ir- irc ird ire iri irm irr irs irt is- isc isd ise isi ism isr iss ist itc itd ite iti itm its itt m-r mc- mcc mcd mce mci mcm mcr mcs mct mdc mdd mde mdi mdm mdr mds mdt mec med mee mei mem mer mes met mi- mic mid mie mii mim mir mis mit mmc mmd mme mmi mmm mmr mms mmt mrc mrd mre mri mrm mrr mrs mrt msc msd mse msi msm msr mss mst mtc mtd mte mti mtm mtr mts mtt rcc rcd rce rci rcm rcr rcs rct rdc rdd rde rdi rdm rdr rds rdt re- rec red ree rei rem rer res ret ric rid rie rii rim rir ris rit rmc rmd rme rmi rmm rmr rms rmt rrc rrd rri rrm rrr rrs rrt rsc rsd rse rsi rsm rsr rss rst rtc rtd rte rti rtm rtr rts rtt scc scd sce sci scm scr scs sct sdc sdd sde sdi sdm sdr sds sdt se- sec sed see sei sem ser ses set sic sid sie sii sim sir sis sit smc smd sme smi smm smr sms smt sr- src srd sre sri srm srr srs srt ss- ssc ssd sse ssi ssm ssr sss sst stc std ste sti stm str sts stt tcc tcd tce tci tcm tcr tcs tct tdc tdd tde tdi tdm tdr tds tdt te- tec ted tee tei tem ter tes tet tic tid tie tii tim tir tis tit tmc tmd tme tmi tmm tmr tms tmt trc trd tre tri trm trr trs trt tsc tsd tse tsi tsm tsr tss tst ttc ttd tte tti ttm ttr tts ttt