-er c-- ccc cce ccm cco ccr ccs cct ccu ce- cec cee cem ceo cer ces cet ceu cmc cme cmm cmo cmr cms cmt cmu co- coc coe com coo cor cos cot cou crc cre crm cro crr crs crt cru csc cse csm cso csr css cst csu ctc cte ctm cto ctr cts ctt ctu cuc cue cum cuo cur cus cut cuu ec- ecc ece ecm eco ecr ecs ect ecu eec eee eem eeo eer ees eet em- emc eme emm emo emr ems emt emu eo- eoc eoe eom eoo eor eos eot eou erc ere erm ero err ers ert eru es- esc ese esm eso esr ess est esu etc ete etm eto etr ets ett etu eu- euc eue eur eus eut m-o m-r mc- mcc mce mcm mco mcr mcs mct mcu mec mee mem meo mer mes met meu mmc mme mmm mmo mmr mms mmt mmu moc moe mom moo mor mos mot mou mrc mre mrm mro mrr mrs mrt mru msc mse msm mso msr mss mst msu mtc mte mtm mto mtr mts mtt mtu muc mue mum mur mus mut muu oc- occ ocm oco ocr ocs oct ocu oec oee oem oeo oer oes oet om- omc ome omm omo omr oms omt omu oo- ooc oom ooo oor oos oot or- orc ore orm oro orr ors ort oru os- osc ose osm oso osr oss ost osu ot- otc ote otm oto otr ots ott otu ou- ouc oue oum ouo our ous out rcc rce rcm rco rcr rcs rct rcu re- rec ree rem reo rer res ret reu rmc rme rmm rmo rmr rms rmt roc roe rom roo ror ros rot rou rrc rrm rrr rrs rrt rru rsc rse rsm rso rsr rss rst rsu rtc rte rtm rto rtr rts rtt rtu ruc rue rum ruo rur rus rut ruu scc sce scm sco scr scs sct scu se- sec see sem seo ser ses set seu smc sme smm smo smr sms smt smu soc soe som soo sor sos sot sou sr- src sre srm sro srr srs srt ss- ssc sse ssm sso ssr sss sst ssu stc ste stm sto str sts stt stu suc sue sum suo sur sus sut suu tcc tce tcm tco tcr tcs tct tcu te- tec tee tem teo ter tes tet teu tmc tme tmm tmo tmr tms tmt tmu to- toc toe tom too tor tos tot tou trc tre trm tro trr trs trt tru tsc tse tsm tso tsr tss tst tsu ttc tte ttm tto ttr tts ttt ttu tuc tue tum tuo tur tus tut tuu ucc uce ucm uco ucr ucs uct ucu uec uee uem uer ues uet um- umc ume umm umo umr ums umt umu uoc uoe uom uoo uor uos uot ur- urc ure urm uro urr urs urt uru usc use usm uso usr uss ust usu utc ute utm uto utr uts utt utu uuc uue uum uur uus uut uuu