-er c-- ccc cce ccm cco ccr cct ccu ce- cec cee cem ceo cer cet ceu cmc cme cmm cmo cmr cmt cmu co- coc coe com coo cor cot cou crc cre crm cro crr crt cru ctc cte ctm cto ctr ctt ctu cuc cue cum cuo cur cut cuu ec- ecc ece ecm eco ecr ect ecu eec eee eem eeo eer eet em- emc eme emm emo emr emt emu eo- eoc eoe eom eoo eor eot eou erc ere erm ero err ert eru etc ete etm eto etr ett etu eu- euc eue eur eut m-o m-r mc- mcc mce mcm mco mcr mct mcu mec mee mem meo mer met meu mmc mme mmm mmo mmr mmt mmu moc moe mom moo mor mot mou mrc mre mrm mro mrr mrt mru mtc mte mtm mto mtr mtt mtu muc mue mum mur mut muu oc- occ ocm oco ocr oct ocu oec oee oem oeo oer oet om- omc ome omm omo omr omt omu oo- ooc oom ooo oor oot or- orc ore orm oro orr ort oru ot- otc ote otm oto otr ott otu ou- ouc oue oum ouo our out rcc rce rcm rco rcr rct rcu re- rec ree rem reo rer ret reu rmc rme rmm rmo rmr rmt roc roe rom roo ror rot rou rrc rrm rrr rrt rru rtc rte rtm rto rtr rtt rtu ruc rue rum ruo rur rut ruu tcc tce tcm tco tcr tct tcu te- tec tee tem teo ter tet teu tmc tme tmm tmo tmr tmt tmu to- toc toe tom too tor tot tou trc tre trm tro trr trt tru ttc tte ttm tto ttr ttt ttu tuc tue tum tuo tur tut tuu ucc uce ucm uco ucr uct ucu uec uee uem uer uet um- umc ume umm umo umr umt umu uoc uoe uom uoo uor uot ur- urc ure urm uro urr urt uru utc ute utm uto utr utt utu uuc uue uum uur uut uuu