-er c-- ccc ccd cce ccg cck ccn cco ccr ccu cdc cdd cde cdg cdk cdn cdo cdr cdu ce- cec ced cee ceg cek cen ceo cer ceu cgc cgd cge cgg cgn cgo cgr cgu ckc ckd cko cn- cnc cnd cne cng cnn cno cnr cnu co- coc cod coe cog cok con coo cor cou crc crd cre crg crk crn cro crr cru cuc cud cue cug cuk cun cuo cur cuu dcc dcd dce dcg dck dcn dco dcr dcu ddc ddd dde ddg ddk ddn ddo ddr ddu de- dec ded dee deg dek den deo der deu dgc dgd dge dgg dgk dgn dgr dgu dkc dke dkg dkk dko dkr dku dnc dnd dne dng dnk dnn dno dnr doc dod doe dog dok don doo dor dou drc drd dre drg drk drn dro drr dru duc dud due dug duk dun duo dur ec- ecc ecd ece ecg eck ecn eco ecr ecu ed- edc edd ede edg edk edn edo edr edu eec eed eee eeg eek een eeo eer egc egd ege egg egn ego egr egu ekc ekd eke ekg eko ekr eku en- enc end ene eng enk enn eno enr enu eo- eoc eod eoe eog eok eon eoo eor eou erc erd ere erg erk ern ero err eru eu- euc eud eue eug eun eur g-d gcc gcd gce gcg gck gcn gco gcr gcu gdc gdd gde gdk gdn gdo gdr gdu ge- gec ged gee geg gek gen geo ger geu ggc ggd ggg ggn ggo ggr ggu gkd gkn gko gnc gnd gne gnn gno gnr gnu goc god goe gog gok gon goo gor gou grc grd gre grg grk grn gro grr gru gu- guc gud gue gug guk gun guo gur guu kcc kcd kce kcg kck kcn kcr kcu kdc kde kdg kdk kdo kdr kdu ke- kec ked kee keg kek ken keo ker kgc kgd kgo kgu kkc kke kkk kkn kkr kku kn- knc knd kne kng knk knn kno knr knu koc kod koe kog kok kon koo kor kou krc krd krg krk krn kro krr kru kuc kud kue kug kuk kun kur kuu ncc ncd nce ncg nck ncn nco ncr ncu ndc ndd nde ndg ndk ndn ndo ndr ndu ne- nec ned nee neg nek nen neo ner neu ngc ngd nge ngg ngk ngn ngo ngu nkc nke nkk nkn nko nkr nku nnc nne nng nnk nnn nno nnu no- noc nod noe nog nok non noo nor nou nrc nrd nre nrg nrk nrn nro nrr nru nuc nud nue nug nuk nun nuo nur nuu oc- occ ocd ocg ock ocn oco ocr ocu odc odd ode odg odn odo odr odu oec oed oee oeg oen oeo oer ogc ogd oge ogg ogn ogo okc okd oke okg okk oko okr oku on- onc ond one ong onk onn ono onr onu oo- ooc ood oog ook oon ooo oor or- orc ord ore org ork orn oro orr oru ou- ouc oud oue ouk oun ouo our rcc rcd rce rcg rcn rco rcr rcu rdc rdd rde rdg rdn rdo rdr rdu re- rec red ree reg rek ren reo rer reu rgc rgd rge rgg rgk rgn rgo rgr rkc rke rkg rkk rko rku rnc rnd rng rnn rno rnr rnu roc rod roe rog rok ron roo ror rou rrc rrd rrg rrk rrn rrr rru ruc rud rue rug ruk run ruo rur ruu ucc ucd uce ucg uck ucn uco ucr ucu udc udd ude udg udk udn udo udr udu uec ued uee ueg uen uer ugc uge ugg ugk ugn ugo ugr ugu ukc uke ukk ukn ukr uku un- unc und une ung unk unn uno unr unu uoc uod uoe uog uok uon uoo uor ur- urc urd ure urg urk urn uro urr uru uuc uue uug uun uur uuu