-er -ic c-- ccc cce cci ccm cco ccr ccs cct ce- cec cee cei cem ceo cer ces cet ci- cic cie cii cim cio cir cis cit cmc cme cmi cmm cmo cmr cms cmt co- coc coe coi com coo cor cos cot crc cre cri crm cro crr crs crt csc cse csi csm cso csr css cst ctc cte cti ctm cto ctr cts ctt ec- ecc ece eci ecm eco ecr ecs ect eec eee eem eeo eer ees eet eic eie eii eim eio eir eis eit em- emc eme emi emm emo emr ems emt eo- eoc eoe eoi eom eoo eor eos eot erc ere eri erm ero err ers ert es- esc ese esi esm eso esr ess est etc ete eti etm eto etr ets ett icc ice ici icm ico icr ics ict ie- iec iee iei iem ier ies iet iic iie iii iim iio iir iis iit im- imc ime imi imm imo ims imt io- ioc ioe ioi iom ioo ior ios iot ir- irc ire iri irm iro irr irs irt is- isc ise isi ism iso isr iss ist itc ite iti itm ito its itt m-o m-r mc- mcc mce mci mcm mco mcr mcs mct mec mee mei mem meo mer mes met mi- mic mie mii mim mio mir mis mit mmc mme mmi mmm mmo mmr mms mmt moc moe moi mom moo mor mos mot mrc mre mri mrm mro mrr mrs mrt msc mse msi msm mso msr mss mst mtc mte mti mtm mto mtr mts mtt o-i oc- occ oci ocm oco ocr ocs oct oec oee oei oem oeo oer oes oet oic oie oii oim oio oir ois oit om- omc ome omi omm omo omr oms omt oo- ooc ooi oom ooo oor oos oot or- orc ore ori orm oro orr ors ort os- osc ose osi osm oso osr oss ost ot- otc ote oti otm oto otr ots ott rcc rce rci rcm rco rcr rcs rct re- rec ree rei rem reo rer res ret ric rie rii rim rio rir ris rit rmc rme rmi rmm rmo rmr rms rmt roc roe roi rom roo ror ros rot rrc rri rrm rrr rrs rrt rsc rse rsi rsm rso rsr rss rst rtc rte rti rtm rto rtr rts rtt scc sce sci scm sco scr scs sct se- sec see sei sem seo ser ses set sic sie sii sim sio sir sis sit smc sme smi smm smo smr sms smt soc soe soi som soo sor sos sot sr- src sre sri srm sro srr srs srt ss- ssc sse ssi ssm sso ssr sss sst stc ste sti stm sto str sts stt tcc tce tci tcm tco tcr tcs tct te- tec tee tei tem teo ter tes tet tic tie tii tim tio tir tis tit tmc tme tmi tmm tmo tmr tms tmt to- toc toe toi tom too tor tos tot trc tre tri trm tro trr trs trt tsc tse tsi tsm tso tsr tss tst ttc tte tti ttm tto ttr tts ttt