-er c-- ccc cce cch cck ccn cco ccr ccu ce- cec cee ceh cek cen ceo cer ceu ch- chc che chh chk chn cho chr chu ckc ckh cko cn- cnc cne cnh cnn cno cnr cnu co- coc coe coh cok con coo cor cou crc cre crh crk crn cro crr cru cuc cue cuh cuk cun cuo cur cuu ec- ecc ece ech eck ecn eco ecr ecu eec eee eek een eeo eer ehc ehe ehh ehn eho ehr ehu ekc eke ekh eko ekr eku en- enc ene enh enk enn eno enr enu eo- eoc eoe eoh eok eon eoo eor eou erc ere erh erk ern ero err eru eu- euc eue eun eur hcc hce hch hck hcn hco hcr he- hec hee heh hek hen heo her heu hhc hhe hhh hhk hhn hho hhr hhu hkh hkk hkn hko hkr hku hnc hne hnh hnk hnn hno hnu hoc hoe hoh hok hon hoo hor hou hr- hrc hre hrh hrk hrn hro hrr hru huc hue huh huk hun huo hur huu kcc kce kch kck kcn kcr kcu ke- kec kee keh kek ken keo ker khe khh khk khn kho khr khu kkc kke kkh kkk kkn kkr kku kn- knc kne knk knn kno knr knu koc koe koh kok kon koo kor kou krc krk krn kro krr kru kuc kue kuh kuk kun kur kuu ncc nce nch nck ncn nco ncr ncu ne- nec nee neh nek nen neo ner neu nhc nhe nhh nhk nhn nhr nhu nkc nke nkk nkn nko nkr nku nnc nne nnh nnk nnn nno nnu no- noc noe noh nok non noo nor nou nrc nre nrk nrn nro nrr nru nuc nue nuh nuk nun nuo nur nuu oc- occ och ock ocn oco ocr ocu oec oee oeh oen oeo oer ohc ohe ohh ohn oho ohr ohu okc oke okk oko okr oku on- onc one onh onk onn ono onr onu oo- ooc ooh ook oon ooo oor or- orc ore orh ork orn oro orr oru ou- ouc oue ouh ouk oun ouo our rcc rce rch rcn rco rcr rcu re- rec ree reh rek ren reo rer reu rh- rhc rhe rhh rhn rho rhr rhu rkc rke rkk rko rku rnc rnh rnn rno rnr rnu roc roe roh rok ron roo ror rou rrc rrh rrk rrn rrr rru ruc rue ruh ruk run ruo rur ruu ucc uce uch uck ucn uco ucr ucu uec uee ueh uen uer uhc uhe uhh uho uhr uhu ukc uke ukk ukn ukr uku un- unc une unh unk unn uno unr unu uoc uoe uok uon uoo uor ur- urc ure urk urn uro urr uru uuc uue uun uur uuu