-er -ic c-- ccc ccd cce ccg cci cck ccn ccr ccs cdc cdd cde cdg cdi cdk cdn cdr cds ce- cec ced cee ceg cei cek cen cer ces cgc cgd cge cgg cgi cgn cgr cgs ci- cic cid cie cig cii cik cin cir cis ckc ckd cki cks cn- cnc cnd cne cng cni cnn cnr cns crc crd cre crg cri crk crn crr crs csc csd cse csg csi csk csn csr css dcc dcd dce dcg dci dck dcn dcr dcs ddc ddd dde ddg ddi ddk ddn ddr dds de- dec ded dee deg dei dek den der des dgc dgd dge dgg dgi dgk dgn dgr dgs di- dic did die dig dii dik din dir dis dkc dke dkg dki dkk dkr dks dnc dnd dne dng dni dnk dnn dnr dns drc drd dre drg dri drk drn drr drs dsc dsd dse dsg dsi dsk dsn dsr dss ec- ecc ecd ece ecg eci eck ecn ecr ecs ed- edc edd ede edg edi edk edn edr eds eec eed eee eeg eek een eer ees egc egd ege egg egi egn egr egs eic eid eie eig eii eik ein eir eis ekc ekd eke ekg eki ekr eks en- enc end ene eng eni enk enn enr ens erc erd ere erg eri erk ern err ers es- esc esd ese esg esi esk esn esr ess g-d gcc gcd gce gcg gci gck gcn gcr gcs gdc gdd gde gdi gdk gdn gdr gds ge- gec ged gee geg gei gek gen ger ges ggc ggd ggg ggi ggn ggr ggs gic gid gie gig gii gik gin gir gis gkd gkn gks gnc gnd gne gni gnn gnr gns grc grd gre grg gri grk grn grr grs gsc gsd gse gsg gsi gsk gsn gsr gss i-d icc icd ice icg ici ick icn icr ics idc idd ide idg idi idk idn idr ids ie- iec ied iee ieg iei iek ien ier ies igc igd ige igg igi igk ign igr igs iic iid iie iii iin iir iis ikc ike iki ikk ikr iks in- inc ind ine ing ini ink inn inr ins ir- irc ird ire irg iri irk irn irr irs is- isc isd ise isg isi isk isn isr iss kcc kcd kce kcg kci kck kcn kcr kcs kdc kde kdg kdk kdr kds ke- kec ked kee keg kei kek ken ker kes kgc kgd kgi kgs kic kid kie kig kii kik kin kir kis kkc kke kki kkk kkn kkr kks kn- knc knd kne kng kni knk knn knr krc krd krg kri krk krn krr krs ksc ksd kse ksg ksi ksk ksn ksr kss n-i ncc ncd nce ncg nci nck ncn ncr ncs ndc ndd nde ndg ndi ndk ndn ndr nds ne- nec ned nee neg nei nek nen ner nes ngc ngd nge ngg ngi ngk ngn ngs nic nid nie nig nii nik nin nir nis nkc nke nki nkk nkn nkr nks nnc nne nng nni nnk nnn nns nrc nrd nre nrg nri nrk nrn nrr nrs nsc nsd nse nsg nsi nsk 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 rek ren rer res rgc rgd rge rgg rgi rgk rgn rgr rgs ric rid rie rig rii rik rin rir ris rkc rke rkg rkk rks rnc rnd rng rni rnn rnr rns rrc rrd rrg rri rrk rrn rrr rrs rsc rsd rse rsg rsi rsk rsn rsr rss scc scd sce scg sci sck scn scr scs sdc sdd sde sdg sdi sdk sdn sdr sds se- sec sed see seg sei sek sen ser ses sgc sgd sge sgg sgi sgk sgn sgr sgs sic sid sie sig sii sik sin sir sis sk- skc skd ske skg ski skk skr sks snc snd sne sng sni snk snn snr sns sr- src srd sre srg sri srk srn srr srs ss- ssc ssd sse ssg ssi ssk ssn ssr sss