-er c-- ccc ccd cce ccf ccg cck cco ccr ccs ccu cdc cdd cde cdf cdg cdk cdo cdr cds cdu ce- cec ced cee cef ceg cek ceo cer ces ceu cfc cfd cfe cff cfg cfk cfo cfr cfs cfu cgc cgd cge cgg cgo cgr cgs cgu ckc ckd cko cks co- coc cod coe cof cog cok coo cor cos cou crc crd cre crf crg crk cro crr crs cru csc csd cse csf csg csk cso csr css csu cuc cud cue cuf cug cuk cuo cur cus cuu dcc dcd dce dcf dcg dck dco dcr dcs dcu ddc ddd dde ddf ddg ddk ddo ddr dds ddu de- dec ded dee def deg dek deo der des deu dfc dfd dfe dff dfg dfk dfo dfr dfs dfu dgc dgd dge dgf dgg dgk dgr dgs dgu dkc dke dkg dkk dko dkr dks dku doc dod doe dof dog dok doo dor dos dou drc drd dre drg drk dro drr drs dru dsc dsd dse dsf dsg dsk dso dsr dss dsu duc dud due duf dug duk duo dur dus ec- ecc ecd ece ecf ecg eck eco ecr ecs ecu ed- edc edd ede edf edg edk edo edr eds edu eec eed eee eef eeg eek eeo eer ees ef- efc efd efe eff efg efo efr efs egc egd ege egf egg ego egr egs egu ekc ekd eke ekf ekg eko ekr eks eku eo- eoc eod eoe eof eog eok eoo eor eos eou erc erd ere erf erg erk ero err ers eru es- esc esd ese esf esg esk eso esr ess esu eu- euc eud eue euf eug eur eus fcc fcd fce fcf fcg fck fco fcr fcs fcu fdc fdd fde fdf fdg fdk fdo fdr fds fdu fec fed fee fef feg fek feo fer fes feu ffc ffd ffe fff ffg ffk ffo ffr ffs ffu fgc fgd fge fgf fgg fgr fgs fkc fkf fkg fkk foc foe fof fog fok foo for fos fou frc frd fre frf frg frk fro frr frs fru fsc fsd fse fsf fsg fsk fso fsr fss fsu fud fue fuf fug fuk fuo fur fus fuu g-d gcc gcd gce gcf gcg gck gco gcr gcs gcu gdc gdd gde gdf gdk gdo gdr gds gdu ge- gec ged gee gef geg gek geo ger ges geu gfc gfd gfe gff gfk gfo gfr gfs ggc ggd ggg ggo ggr ggs ggu gkd gko gks goc god goe gof gog gok goo gor gos gou grc grd gre grf grg grk gro grr grs gru gsc gsd gse gsf gsg gsk gso gsr gss gsu gu- guc gud gue guf gug guk guo gur gus guu kcc kcd kce kcg kck kcr kcs kcu kdc kde kdf kdg kdk kdo kdr kds kdu ke- kec ked kee kef keg kek keo ker kes kfc kfd kff kfg kfo kfs kfu kgc kgd kgf kgo kgs kgu kkc kke kkk kkr kks kku koc kod koe kof kog kok koo kor kos kou krc krd krf krg krk kro krr krs kru ksc ksd kse ksf ksg ksk kso ksr kss ksu kuc kud kue kug kuk kur kus kuu oc- occ ocd ocf ocg ock oco ocr ocs ocu odc odd ode odf odg odo odr ods odu oec oed oee oef oeg oeo oer oes of- ofc ofd ofe off ofg ofo ofr ofs ofu ogc ogd oge ogf ogg ogo ogs okc okd oke okg okk oko okr oks oku oo- ooc ood oof oog ook ooo oor oos or- orc ord ore orf org ork oro orr ors oru os- osc osd ose osf osg osk oso osr oss osu ou- ouc oud oue ouf ouk ouo our ous rcc rcd rce rcf rcg rco rcr rcs rcu rdc rdd rde rdf rdg rdo rdr rds rdu re- rec red ree ref reg rek reo rer res reu rfc rfd rfe rff rfg rfk rfo rfr rfs rfu rgc rgd rge rgf rgg rgk rgo rgr rgs rkc rke rkf rkg rkk rko rks rku roc rod roe rof rog rok roo ror ros rou rrc rrd rrf rrg rrk rrr rrs rru rsc rsd rse rsf rsg rsk rso rsr rss rsu ruc rud rue ruf rug ruk ruo rur rus ruu scc scd sce scf scg sck sco scr scs scu sdc sdd sde sdf sdg sdk sdo sdr sds sdu se- sec sed see sef seg sek seo ser ses seu sfc sfd sfe sff sfg sfk sfo sfr sfs sfu sgc sgd sge sgf sgg sgk sgo sgr sgs sgu sk- skc skd ske skf skg skk sko skr sks sku soc sod soe sof sog sok soo sor sos sou sr- src srd sre srf srg srk sro srr srs ss- ssc ssd sse ssf ssg ssk sso ssr sss ssu suc sud sue suf sug suk suo sur sus suu ucc ucd uce ucf ucg uck uco ucr ucs ucu udc udd ude udf udg udk udo udr uds udu uec ued uee uef ueg uer ues ufc ufd ufe uff ufg ufo ufr ufs ufu ugc uge ugf ugg ugk ugo ugr ugs ugu ukc uke ukf ukk ukr uku uoc uod uoe uog uok uoo uor uos ur- urc urd ure urf urg urk uro urr urs uru usc usd use usf usg usk uso usr uss usu uuc uue uug uur uus uuu