-er -ic c-- ccc ccd cce ccg cci ccn cco ccr ccs cdc cdd cde cdg cdi cdn cdo cdr cds ce- cec ced cee ceg cei cen ceo cer ces cgc cgd cge cgg cgi cgn cgo cgr cgs ci- cic cid cie cig cii cin cio cir cis cn- cnc cnd cne cng cni cnn cno cnr cns co- coc cod coe cog coi con coo cor cos crc crd cre crg cri crn cro crr crs csc csd cse csg csi csn cso csr css dcc dcd dce dcg dci dcn dco dcr dcs ddc ddd dde ddg ddi ddn ddo ddr dds de- dec ded dee deg dei den deo der des dgc dgd dge dgg dgi dgn dgr dgs di- dic did die dig dii din dio dir dis dnc dnd dne dng dni dnn dno dnr dns doc dod doe dog doi don doo dor dos drc drd dre drg dri drn dro drr drs dsc dsd dse dsg dsi dsn dso dsr dss ec- ecc ecd ece ecg eci ecn eco ecr ecs ed- edc edd ede edg edi edn edo edr eds eec eed eee eeg een eeo eer ees egc egd ege egg egi egn ego egr egs eic eid eie eig eii ein eio eir eis en- enc end ene eng eni enn eno enr ens eo- eoc eod eoe eog eoi eon eoo eor eos erc erd ere erg eri ern ero err ers es- esc esd ese esg esi esn eso esr ess g-d gcc gcd gce gcg gci gcn gco gcr gcs gdc gdd gde gdi gdn gdo gdr gds ge- gec ged gee geg gei gen geo ger ges ggc ggd ggg ggi ggn ggo ggr ggs gic gid gie gig gii gin gio gir gis gnc gnd gne gni gnn gno gnr gns goc god goe gog goi gon goo gor gos grc grd gre grg gri grn gro grr grs gsc gsd gse gsg gsi gsn gso gsr gss i-d icc icd ice icg ici icn ico icr ics idc idd ide idg idi idn ido idr ids ie- iec ied iee ieg iei ien ier ies igc igd ige igg igi ign igo igr igs iic iid iie iii iin iio iir iis in- inc ind ine ing ini inn ino inr ins io- ioc iod ioe iog ioi ion ioo ior ios ir- irc ird ire irg iri irn iro irr irs is- isc isd ise isg isi isn iso isr iss n-i ncc ncd nce ncg nci ncn nco ncr ncs ndc ndd nde ndg ndi ndn ndo ndr nds ne- nec ned nee neg nei nen neo ner nes ngc ngd nge ngg ngi ngn ngo ngs nic nid nie nig nii nin nio nir nis nnc nne nng nni nnn nno nns no- noc nod noe nog noi non noo nor nos nrc nrd nre nrg nri nrn nro nrr nrs nsc nsd nse nsg nsi nsn nso nsr nss o-i oc- occ ocd ocg oci ocn oco ocr ocs odc odd ode odg odi odn odo odr ods oec oed oee oeg oei oen oeo oer oes ogc ogd oge ogg ogi ogn ogo ogs oic oid oie oii oin oio oir ois on- onc ond one ong oni onn ono onr ons oo- ooc ood oog ooi oon ooo oor oos or- orc ord ore org ori orn oro orr ors os- osc osd ose osg osi osn oso osr oss rcc rcd rce rcg rci rcn rco rcr rcs rdc rdd rde rdg rdi rdn rdo rdr rds re- rec red ree reg rei ren reo rer res rgc rgd rge rgg rgi rgn rgo rgr rgs ric rid rie rig rii rin rio rir ris rnc rnd rng rni rnn rno rnr rns roc rod roe rog roi ron roo ror ros rrc rrd rrg rri rrn rrr rrs rsc rsd rse rsg rsi rsn rso rsr rss scc scd sce scg sci scn sco scr scs sdc sdd sde sdg sdi sdn sdo sdr sds se- sec sed see seg sei sen seo ser ses sgc sgd sge sgg sgi sgn sgo sgr sgs sic sid sie sig sii sin sio sir sis snc snd sne sng sni snn sno snr sns soc sod soe sog soi son soo sor sos sr- src srd sre srg sri srn sro srr srs ss- ssc ssd sse ssg ssi ssn sso ssr sss