-er -ic c-- ccc ccd cce ccg cci ccn ccr ccs cdc cdd cde cdg cdi cdn cdr cds ce- cec ced cee ceg cei cen cer ces cgc cgd cge cgg cgi cgn cgr cgs ci- cic cid cie cig cii cin cir cis cn- cnc cnd cne cng cni cnn cnr cns crc crd cre crg cri crn crr crs csc csd cse csg csi csn csr css dcc dcd dce dcg dci dcn dcr dcs ddc ddd dde ddg ddi ddn ddr dds de- dec ded dee deg dei den der des dgc dgd dge dgg dgi dgn dgr dgs di- dic did die dig dii din dir dis dnc dnd dne dng dni dnn dnr dns drc drd dre drg dri drn drr drs dsc dsd dse dsg dsi dsn dsr dss ec- ecc ecd ece ecg eci ecn ecr ecs ed- edc edd ede edg edi edn edr eds eec eed eee eeg een eer ees egc egd ege egg egi egn egr egs eic eid eie eig eii ein eir eis en- enc end ene eng eni enn enr ens erc erd ere erg eri ern err ers es- esc esd ese esg esi esn esr ess g-d gcc gcd gce gcg gci gcn gcr gcs gdc gdd gde gdi gdn gdr gds ge- gec ged gee geg gei gen ger ges ggc ggd ggg ggi ggn ggr ggs gic gid gie gig gii gin gir gis gnc gnd gne gni gnn gnr gns grc grd gre grg gri grn grr grs gsc gsd gse gsg gsi gsn gsr gss i-d icc icd ice icg ici icn icr ics idc idd ide idg idi idn idr ids ie- iec ied iee ieg iei ien ier ies igc igd ige igg igi ign igr igs iic iid iie iii iin iir iis in- inc ind ine ing ini inn inr ins ir- irc ird ire irg iri irn irr irs is- isc isd ise isg isi isn isr iss n-i ncc ncd nce ncg nci ncn ncr ncs ndc ndd nde ndg ndi ndn ndr nds ne- nec ned nee neg nei nen ner nes ngc ngd nge ngg ngi ngn ngs nic nid nie nig nii nin nir nis nnc nne nng nni nnn nns nrc nrd nre nrg nri nrn nrr nrs nsc nsd nse nsg nsi nsn nsr nss rcc rcd rce rcg rci rcn rcr rcs rdc rdd rde rdg rdi rdn rdr rds re- rec red ree reg rei ren rer res rgc rgd rge rgg rgi rgn rgr rgs ric rid rie rig rii rin rir ris rnc rnd rng rni rnn rnr rns rrc rrd rrg rri rrn rrr rrs rsc rsd rse rsg rsi rsn rsr rss scc scd sce scg sci scn scr scs sdc sdd sde sdg sdi sdn sdr sds se- sec sed see seg sei sen ser ses sgc sgd sge sgg sgi sgn sgr sgs sic sid sie sig sii sin sir sis snc snd sne sng sni snn snr sns sr- src srd sre srg sri srn srr srs ss- ssc ssd sse ssg ssi ssn ssr sss