-er c-- ccc cce cch cck ccp ccr ccs ce- cec cee ceh cek cep cer ces ch- chc che chh chk chp chr chs ckc ckh cks cpc cpe cph cpk cpp cpr cps crc cre crh crk crp crr crs csc cse csh csk csp csr css ec- ecc ece ech eck ecr ecs eec eee eek eep eer ees ehc ehe ehh ehp ehr ehs ekc eke ekh ekp ekr eks ep- epc epe eph epp epr eps erc ere erh erk erp err ers es- esc ese esh esk esp esr ess hcc hce hch hck hcp hcr hcs he- hec hee heh hek hep her hes hhc hhe hhh hhk hhp hhr hhs hkh hkk hkp hkr hks hpc hpe hph hpk hpp hpr hps hr- hrc hre hrh hrk hrp hrr hrs hsc hse hsh hsk hsp hsr hss kcc kce kch kck kcp kcr kcs ke- kec kee keh kek kep ker kes khe khh khk khr khs kkc kke kkh kkk kkp kkr kks kpc kpe kph kpk kpp kpr kps krc krk krp krr krs ksc kse ksh ksk ksp ksr kss p-p pcc pce pch pck pcp pcr pcs pec pee peh pek pep per pes phc phe phk php phr phs pkc pke pkp pkr pks ppc ppe pph ppk ppp ppr pps prc pre prh prk prp prr prs ps- psc pse psh psk psp psr pss rcc rce rch rcp rcr rcs re- rec ree reh rek rep rer res rh- rhc rhe rhh rhp rhr rhs rkc rke rkk rkp rks rpc rpe rph rpk rpp rpr rps rrc rrh rrk rrp rrr rrs rsc rse rsh rsk rsp rsr rss scc sce sch sck scp scr scs se- sec see seh sek sep ser ses sh- shc she shh shk shp shr shs sk- skc ske skh skk skp skr sks spc spe sph spk spp spr sps sr- src sre srh srk srp srr srs ss- ssc sse ssh ssk ssp ssr sss