-er c-- ccc cce ccg ccm cco ccr ccu ce- cec cee ceg cem ceo cer ceu cgc cge cgg cgm cgo cgr cgu cmc cme cmg cmm cmo cmr cmu co- coc coe cog com coo cor cou crc cre crg crm cro crr cru cuc cue cug cum cuo cur cuu ec- ecc ece ecg ecm eco ecr ecu eec eee eeg eem eeo eer egc ege egg egm ego egr egu em- emc eme emg emm emo emr emu eo- eoc eoe eog eom eoo eor eou erc ere erg erm ero err eru eu- euc eue eug eur gcc gce gcg gcm gco gcr gcu ge- gec gee geg gem geo ger geu ggc ggg ggm ggo ggr ggu gmc gme gmg gmm gmo gmr goc goe gog gom goo gor gou grc gre grg grm gro grr gru gu- guc gue gug gum guo gur guu m-o m-r mc- mcc mce mcg mcm mco mcr mcu mec mee meg mem meo mer meu mgc mge mgm mgo mgr mgu mmc mme mmg mmm mmo mmr mmu moc moe mog mom moo mor mou mrc mre mrg mrm mro mrr mru muc mue mug mum mur muu oc- occ ocg ocm oco ocr ocu oec oee oeg oem oeo oer ogc oge ogg ogo om- omc ome omg omm omo omr omu oo- ooc oog oom ooo oor or- orc ore org orm oro orr oru ou- ouc oue oum ouo our rcc rce rcg rcm rco rcr rcu re- rec ree reg rem reo rer reu rgc rge rgg rgo rgr rmc rme rmg rmm rmo rmr roc roe rog rom roo ror rou rrc rrg rrm rrr rru ruc rue rug rum ruo rur ruu ucc uce ucg ucm uco ucr ucu uec uee ueg uem uer ugc uge ugg ugm ugo ugr ugu um- umc ume umg umm umo umr umu uoc uoe uog uom uoo uor ur- urc ure urg urm uro urr uru uuc uue uug uum uur uuu