-er -up c-- ccc ccd cce ccg cco ccp ccr ccu cdc cdd cde cdg cdo cdp cdr cdu ce- cec ced cee ceg ceo cep cer ceu cgc cgd cge cgg cgo cgp cgr cgu co- coc cod coe cog coo cop cor cou cpc cpd cpe cpg cpo cpp cpr cpu crc crd cre crg cro crp crr cru cuc cud cue cug cuo cup cur cuu dcc dcd dce dcg dco dcp dcr dcu ddc ddd dde ddg ddo ddp ddr ddu de- dec ded dee deg deo dep der deu dgc dgd dge dgg dgp dgr dgu doc dod doe dog doo dop dor dou dpc dpd dpe dpg dpo dpp dpr dpu drc drd dre drg dro drp drr dru duc dud due dug duo dup dur ec- ecc ecd ece ecg eco ecr ecu ed- edc edd ede edg edo edp edr edu eec eed eee eeg eeo eep eer egc egd ege egg ego egp egr egu eo- eoc eod eoe eog eoo eop eor eou ep- epc epd epe epg epo epp epr epu erc erd ere erg ero erp err eru eu- euc eud eue eug eup eur g-d g-p gcc gcd gce gcg gco gcp gcr gcu gdc gdd gde gdo gdp gdr gdu ge- gec ged gee geg geo gep ger geu ggc ggd ggg ggo ggp ggr ggu goc god goe gog goo gop gor gou gpc gpd gpe gpg gpo gpp gpr gpu grc grd gre grg gro grp grr gru gu- guc gud gue gug guo gup gur guu oc- occ ocd ocg oco ocp ocr ocu odc odd ode odg odo odp odr odu oec oed oee oeg oeo oep oer ogc ogd oge ogg ogo ogp oo- ooc ood oog ooo oop oor op- opc opd ope opg opo opp opr or- orc ord ore org oro orp orr oru ou- ouc oud oue ouo oup our p-p pcc pcd pce pcg pco pcp pcr pcu pdc pdd pde pdg pdo pdp pdr pdu pec ped pee peg peo pep per peu pgc pgd pge pgg pgo pgp pgr poc pod poe pog poo pop por pou ppc ppd ppe ppg ppo ppp ppr ppu prc prd pre prg pro prp prr pru puc pud pue pug pup pur puu rcc rcd rce rcg rco rcp rcr rcu rdc rdd rde rdg rdo rdp rdr rdu re- rec red ree reg reo rep rer reu rgc rgd rge rgg rgo rgp rgr roc rod roe rog roo rop ror rou rpc rpd rpe rpg rpo rpp rpr rpu rrc rrd rrg rrp rrr rru ruc rud rue rug ruo rup rur ruu ucc ucd uce ucg uco ucp ucr ucu udc udd ude udg udo udp udr udu uec ued uee ueg uep uer ugc uge ugg ugo ugp ugr ugu uoc uod uoe uog uoo uop uor up- upc upd upe upg upo upp upr upu ur- urc urd ure urg uro urp urr uru uuc uue uug uur uuu