-er c-- ccc cce ccg cch ccn cco ccr ccs ce- cec cee ceg ceh cen ceo cer ces cgc cge cgg cgh cgn cgo cgr cgs ch- chc che chg chh chn cho chr chs cn- cnc cne cng cnh cnn cno cnr cns co- coc coe cog coh con coo cor cos crc cre crg crh crn cro crr crs csc cse csg csh csn cso csr css ec- ecc ece ecg ech ecn eco ecr ecs eec eee eeg een eeo eer ees egc ege egg egh egn ego egr egs ehc ehe ehg ehh ehn eho ehr ehs en- enc ene eng enh enn eno enr ens eo- eoc eoe eog eoh eon eoo eor eos erc ere erg erh ern ero err ers es- esc ese esg esh esn eso esr ess gcc gce gcg gch gcn gco gcr gcs ge- gec gee geg geh gen geo ger ges ggc ggg ggh ggn ggo ggr ggs ghc ghe ghg ghh ghn gho ghr ghs gnc gne gnn gno gnr gns goc goe gog goh gon goo gor gos grc gre grg grh grn gro grr grs gsc gse gsg gsn gso gsr gss hcc hce hcg hch hcn hco hcr hcs he- hec hee heg heh hen heo her hes hgc hge hgg hgh hgn hgo hgr hgs hhc hhe hhg hhh hhn hho hhr hhs hnc hne hng hnh hnn hno hns hoc hoe hog hoh hon hoo hor hos hr- hrc hre hrg hrh hrn hro hrr hrs hsc hse hsg hsh hsn hsr hss ncc nce ncg nch ncn nco ncr ncs ne- nec nee neg neh nen neo ner nes ngc nge ngg ngh ngn ngo ngs nhc nhe nhg nhh nhn nhr nhs nnc nne nng nnh nnn nno nns no- noc noe nog noh non noo nor nos nrc nre nrg nrn nro nrr nrs nsc nse nsg nsh nsn nso nsr nss oc- occ ocg och ocn oco ocr ocs oec oee oeg oeh oen oeo oer oes ogc oge ogg ogh ogn ogo ogs ohc ohe ohg ohh ohn oho ohr ohs on- onc one ong onh onn ono onr ons oo- ooc oog ooh oon ooo oor oos or- orc ore org orh orn oro orr ors os- osc ose osg osh osn oso osr oss rcc rce rcg rch rcn rco rcr rcs re- rec ree reg reh ren reo rer res rgc rge rgg rgh rgn rgo rgr rgs rh- rhc rhe rhg rhh rhn rho rhr rhs rnc rng rnh rnn rno rnr rns roc roe rog roh ron roo ror ros rrc rrg rrh rrn rrr rrs rsc rse rsg rsh rsn rso rsr rss scc sce scg sch scn sco scr scs se- sec see seg seh sen seo ser ses sgc sge sgg sgh sgn sgo sgr sgs sh- shc she shg shh shn sho shr shs snc sne sng snn sno snr sns soc soe sog soh son soo sor sos sr- src sre srg srh srn sro srr srs ss- ssc sse ssg ssh ssn sso ssr sss