-er c-- ccc cce cch cck ccn cco ccr ccs ccu ce- cec cee ceh cek cen ceo cer ces ceu ch- chc che chh chk chn cho chr chs chu ckc ckh cko cks cn- cnc cne cnh cnn cno cnr cns cnu co- coc coe coh cok con coo cor cos cou crc cre crh crk crn cro crr crs cru csc cse csh csk csn cso csr css csu cuc cue cuh cuk cun cuo cur cus cuu ec- ecc ece ech eck ecn eco ecr ecs ecu eec eee eek een eeo eer ees ehc ehe ehh ehn eho ehr ehs ehu ekc eke ekh eko ekr eks eku en- enc ene enh enk enn eno enr ens enu eo- eoc eoe eoh eok eon eoo eor eos eou erc ere erh erk ern ero err ers eru es- esc ese esh esk esn eso esr ess esu eu- euc eue eun eur eus hcc hce hch hck hcn hco hcr hcs he- hec hee heh hek hen heo her hes heu hhc hhe hhh hhk hhn hho hhr hhs hhu hkh hkk hkn hko hkr hks hku hnc hne hnh hnk hnn hno hns hnu hoc hoe hoh hok hon hoo hor hos hou hr- hrc hre hrh hrk hrn hro hrr hrs hru hsc hse hsh hsk hsn hsr hss hsu huc hue huh huk hun huo hur hus huu kcc kce kch kck kcn kcr kcs kcu ke- kec kee keh kek ken keo ker kes khe khh khk khn kho khr khs khu kkc kke kkh kkk kkn kkr kks kku kn- knc kne knk knn kno knr knu koc koe koh kok kon koo kor kos kou krc krk krn kro krr krs kru ksc kse ksh ksk ksn kso ksr kss ksu kuc kue kuh kuk kun kur kus kuu ncc nce nch nck ncn nco ncr ncs ncu ne- nec nee neh nek nen neo ner nes neu nhc nhe nhh nhk nhn nhr nhs nhu nkc nke nkk nkn nko nkr nks nku nnc nne nnh nnk nnn nno nns nnu no- noc noe noh nok non noo nor nos nou nrc nre nrk nrn nro nrr nrs nru nsc nse nsh nsk nsn nso nsr nss nsu nuc nue nuh nuk nun nuo nur nus nuu oc- occ och ock ocn oco ocr ocs ocu oec oee oeh oen oeo oer oes ohc ohe ohh ohn oho ohr ohs ohu okc oke okk oko okr oks oku on- onc one onh onk onn ono onr ons onu oo- ooc ooh ook oon ooo oor oos or- orc ore orh ork orn oro orr ors oru os- osc ose osh osk osn oso osr oss osu ou- ouc oue ouh ouk oun ouo our ous rcc rce rch rcn rco rcr rcs rcu re- rec ree reh rek ren reo rer res reu rh- rhc rhe rhh rhn rho rhr rhs rhu rkc rke rkk rko rks rku rnc rnh rnn rno rnr rns rnu roc roe roh rok ron roo ror ros rou rrc rrh rrk rrn rrr rrs rru rsc rse rsh rsk rsn rso rsr rss rsu ruc rue ruh ruk run ruo rur rus ruu scc sce sch sck scn sco scr scs scu se- sec see seh sek sen seo ser ses seu sh- shc she shh shk shn sho shr shs shu sk- skc ske skh skk sko skr sks sku snc sne snk snn sno snr sns snu soc soe soh sok son soo sor sos sou sr- src sre srh srk srn sro srr srs ss- ssc sse ssh ssk ssn sso ssr sss ssu suc sue suh suk sun suo sur sus suu ucc uce uch uck ucn uco ucr ucs ucu uec uee ueh uen uer ues uhc uhe uhh uho uhr uhs uhu ukc uke ukk ukn ukr uku un- unc une unh unk unn uno unr uns unu uoc uoe uok uon uoo uor uos ur- urc ure urk urn uro urr urs uru usc use ush usk usn uso usr uss usu uuc uue uun uur uus uuu