-er c-- ccc cce ccg cch cck ccn cco ccr ce- cec cee ceg ceh cek cen ceo cer cgc cge cgg cgh cgn cgo cgr ch- chc che chg chh chk chn cho chr ckc ckh cko cn- cnc cne cng cnh cnn cno cnr co- coc coe cog coh cok con coo cor crc cre crg crh crk crn cro crr ec- ecc ece ecg ech eck ecn eco ecr eec eee eeg eek een eeo eer egc ege egg egh egn ego egr ehc ehe ehg ehh ehn eho ehr ekc eke ekg ekh eko ekr en- enc ene eng enh enk enn eno enr eo- eoc eoe eog eoh eok eon eoo eor erc ere erg erh erk ern ero err gcc gce gcg gch gck gcn gco gcr ge- gec gee geg geh gek gen geo ger ggc ggg ggh ggn ggo ggr ghc ghe ghg ghh ghn gho ghr gkh gkn gko gnc gne gnn gno gnr goc goe gog goh gok gon goo gor grc gre grg grh grk grn gro grr hcc hce hcg hch hck hcn hco hcr he- hec hee heg heh hek hen heo her hgc hge hgg hgh hgk hgn hgo hgr hhc hhe hhg hhh hhk hhn hho hhr hkg hkh hkk hkn hko hkr hnc hne hng hnh hnk hnn hno hoc hoe hog hoh hok hon hoo hor hr- hrc hre hrg hrh hrk hrn hro hrr kcc kce kcg kch kck kcn kcr ke- kec kee keg keh kek ken keo ker kgc kgh kgo khe khh khk khn kho khr kkc kke kkh kkk kkn kkr kn- knc kne kng knk knn kno knr koc koe kog koh kok kon koo kor krc krg krk krn kro krr ncc nce ncg nch nck ncn nco ncr ne- nec nee neg neh nek nen neo ner ngc nge ngg ngh ngk ngn ngo nhc nhe nhg nhh nhk nhn nhr nkc nke nkk nkn nko nkr nnc nne nng nnh nnk nnn nno no- noc noe nog noh nok non noo nor nrc nre nrg nrk nrn nro nrr oc- occ ocg och ock ocn oco ocr oec oee oeg oeh oen oeo oer ogc oge ogg ogh ogn ogo ohc ohe ohg ohh ohn oho ohr okc oke okg okk oko okr on- onc one ong onh onk onn ono onr oo- ooc oog ooh ook oon ooo oor or- orc ore org orh ork orn oro orr rcc rce rcg rch rcn rco rcr re- rec ree reg reh rek ren reo rer rgc rge rgg rgh rgk rgn rgo rgr rh- rhc rhe rhg rhh rhn rho rhr rkc rke rkg rkk rko rnc rng rnh rnn rno rnr roc roe rog roh rok ron roo ror rrc rrg rrh rrk rrn rrr