-er c-- ccc cce ccg ccm ccr cct ccu ce- cec cee ceg cem cer cet ceu cgc cge cgg cgm cgr cgt cgu cmc cme cmg cmm cmr cmt cmu crc cre crg crm crr crt cru ctc cte ctg ctm ctr ctt ctu cuc cue cug cum cur cut cuu ec- ecc ece ecg ecm ecr ect ecu eec eee eeg eem eer eet egc ege egg egm egr egt egu em- emc eme emg emm emr emt emu erc ere erg erm err ert eru etc ete etg etm etr ett etu eu- euc eue eug eur eut gcc gce gcg gcm gcr gct gcu ge- gec gee geg gem ger get geu ggc ggg ggm ggr ggt ggu gmc gme gmg gmm gmr gmt grc gre grg grm grr grt gru gtc gte gtg gtm gtr gtt gtu gu- guc gue gug gum gur gut guu m-r mc- mcc mce mcg mcm mcr mct mcu mec mee meg mem mer met meu mgc mge mgm mgr mgt mgu mmc mme mmg mmm mmr mmt mmu mrc mre mrg mrm mrr mrt mru mtc mte mtg mtm mtr mtt mtu muc mue mug mum mur mut muu rcc rce rcg rcm rcr rct rcu re- rec ree reg rem rer ret reu rgc rge rgg rgr rgt rmc rme rmg rmm rmr rmt rrc rrg rrm rrr rrt rru rtc rte rtg rtm rtr rtt rtu ruc rue rug rum rur rut ruu tcc tce tcg tcm tcr tct tcu te- tec tee teg tem ter tet teu tgc tge tgg tgm tgr tgt tgu tmc tme tmg tmm tmr tmt tmu trc tre trg trm trr trt tru ttc tte ttg ttm ttr ttt ttu tuc tue tug tum tur tut tuu ucc uce ucg ucm ucr uct ucu uec uee ueg uem uer uet ugc uge ugg ugm ugr ugt ugu um- umc ume umg umm umr umt umu ur- urc ure urg urm urr urt uru utc ute utm utr utt utu uuc uue uug uum uur uut uuu