-er -up c-- ccc cce cch ccp ccr ccu ce- cec cee ceh cep cer ceu ch- chc che chh chp chr chu cpc cpe cph cpp cpr cpu crc cre crh crp crr cru cuc cue cuh cup cur cuu ec- ecc ece ech ecr ecu eec eee eep eer ehc ehe ehh ehp ehr ehu ep- epc epe eph epp epr epu erc ere erh erp err eru eu- euc eue eup eur hcc hce hch hcp hcr he- hec hee heh hep her heu hhc hhe hhh hhp hhr hhu hpc hpe hph hpp hpr hpu hr- hrc hre hrh hrp hrr hru huc hue huh hup hur huu p-p pcc pce pch pcp pcr pcu pec pee peh pep per peu phc phe php phr phu ppc ppe pph ppp ppr ppu prc pre prh prp prr pru puc pue puh pup pur puu rcc rce rch rcp rcr rcu re- rec ree reh rep rer reu rh- rhc rhe rhh rhp rhr rhu rpc rpe rph rpp rpr rpu rrc rrh rrp rrr rru ruc rue ruh rup rur ruu ucc uce uch ucp ucr ucu uec uee ueh uep uer uhc uhe uhh uhp uhr uhu up- upc upe uph upp upr upu ur- urc ure urp urr uru uuc uue uur uuu