-er c-- ccc cce ccg ccn cco ccr cct ccv ce- cec cee ceg cen ceo cer cet cev cgc cge cgg cgn cgo cgr cgt cgv cn- cnc cne cng cnn cno cnr cnt cnv co- coc coe cog con coo cor cot cov crc cre crg crn cro crr crt crv ctc cte ctg ctn cto ctr ctt ctv cvc cve cvg cvn cvo cvr cvt cvv ec- ecc ece ecg ecn eco ecr ect ecv eec eee eeg een eeo eer eet eev egc ege egg egn ego egr egt en- enc ene eng enn eno enr ent env eo- eoc eoe eog eon eoo eor eot erc ere erg ern ero err ert erv etc ete etg etn eto etr ett etv evc eve evg evn evo evr evt evv gcc gce gcg gcn gco gcr gct ge- gec gee geg gen geo ger get gev ggc ggg ggn ggo ggr ggt ggv gnc gne gnn gno gnr gnt gnv goc goe gog gon goo gor got gov grc gre grg grn gro grr grt grv gtc gte gtg gtn gto gtr gtt gtv gvc gve gvg gvn gvo gvr gvt ncc nce ncg ncn nco ncr nct ncv ne- nec nee neg nen neo ner net nev ngc nge ngg ngn ngo ngt nnc nne nng nnn nno nnt nnv no- noc noe nog non noo nor not nov nrc nre nrg nrn nro nrr nrt nrv ntc nte ntg ntn nto ntr ntt ntv nvc nve nvg nvn nvt nvv oc- occ ocg ocn oco ocr oct ocv oec oee oeg oen oeo oer oet ogc oge ogg ogn ogo ogt on- onc one ong onn ono onr ont oo- ooc oog oon ooo oor oot oov or- orc ore org orn oro orr ort orv ot- otc ote otg otn oto otr ott otv ov- ovc ove ovo ovv rcc rce rcg rcn rco rcr rct rcv re- rec ree reg ren reo rer ret rev rgc rge rgg rgn rgo rgr rgt rgv rnc rng rnn rno rnr rnt rnv roc roe rog ron roo ror rot rov rrc rrg rrn rrr rrt rtc rte rtg rtn rto rtr rtt rtv rvc rve rvg rvn rvo rvr rvt rvv tcc tce tcg tcn tco tcr tct tcv te- tec tee teg ten teo ter tet tev tgc tge tgg tgn tgo tgr tgt tgv tnc tne tng tnn tno tnr tnt to- toc toe tog ton too tor tot tov trc tre trg trn tro trr trt trv ttc tte ttg ttn tto ttr ttt ttv tvc tve tvg tvn tvo tvr tvt v-e vcc vce vcn vco vcr vct vec vee veg ven veo ver vet vgc vgg vgn vgo vgr vgt vn- vng vno vnr vnv voc voe vog von voo vor vot vov vrc vre vrg vrn vrr vrt vtc vte vtg vto vtr vtt vtv vvc vvg vvo vvr vvt vvv