-er -ey -ic c-- ccc cce cch cci ccp ccr ccx ce- cec cee ceh cei cep cer cex cey ch- chc che chh chi chp chr chx chy ci- cic cie cih cii cip cir cix cpc cpe cph cpi cpp cpr cpx crc cre crh cri crp crr crx cry cxc cxh cxi cxp cxr cxx cyc cye cyp cyr ec- ecc ece ech eci ecr ecx eec eee eep eer eex eey ehc ehe ehh ehi ehp ehr eic eie eii eip eir eix ep- epc epe eph epi epp epr epx erc ere erh eri erp err ery ex- exc exe exh exi exp exr exx exy eyc eye eyp eyr h-i hcc hce hch hci hcp hcr hcy he- hec hee heh hei hep her hex hey hhc hhe hhh hhi hhp hhr hhy hic hie hih hii hip hir hix hpc hpe hph hpi hpp hpr hpy hr- hrc hre hrh hri hrp hrr hxc hy- hyc hye hyh hyi hyp hyr hyy icc ice ich ici icp icr icy ie- iec iee iei iep ier iex iey ihc ihe ihh ihi ihp ihr ihy iic iie iih iii iip iir iix ipc ipe ipi ipp ipr ipx ipy ir- irc ire iri irp irr irx iry ixc ixe ixi ixy iyc iye iyr iyy p-p pcc pce pch pci pcp pcr pcx pec pee peh pei pep per pex pey phc phe phi php phr phx phy pic pie pih pii pip pir pix ppc ppe pph ppi ppp ppr ppx prc pre prh pri prp prr prx pry pxc pxe pxr py- pyc pye pyr pyx rcc rce rch rci rcp rcr rcx re- rec ree reh rei rep rer rex rey rh- rhc rhe rhh rhi rhp rhr ric rie rih rii rip rir rix riy rpc rpe rph rpi rpp rpr rpx rrc rrh rri rrp rrr rxp rxr ry- ryc rye ryr ryy xch xci xcp xcr xcx xee xep xer xex xhp xic xie xii xix xpc xpe xpp xrc xrx xry xxi xxp xxx xxy xyp xyr xyy ycc yce ych yci ycp ycy yec yee yeh yei yep yer yex yey yhc yhe yhi yie yih yii yip yir yrc yre yrp yxe yxy yyc yye yyy