-er -ic -up c-- ccc cce cci ccm ccp ccr ccu ccx ce- cec cee cei cem cep cer ceu cex ci- cic cie cii cim cip cir ciu cix cmc cme cmi cmm cmp cmr cmu cmx cpc cpe cpi cpm cpp cpr cpu cpx crc cre cri crm crp crr cru crx cuc cue cui cum cup cur cuu cxc cxi cxp cxr cxx ec- ecc ece eci ecm ecr ecu ecx eec eee eem eep eer eex eic eie eii eim eip eir eiu eix em- emc eme emi emm emp emr emu emx ep- epc epe epi epm epp epr epu epx erc ere eri erm erp err eru eu- euc eue eui eup eur eux ex- exc exe exi exp exr exu exx icc ice ici icm icp icr icu ie- iec iee iei iem iep ier iex iic iie iii iim iip iir iiu iix im- imc ime imi imm imp imu imx ipc ipe ipi ipm ipp ipr ipu ipx ir- irc ire iri irm irp irr iru irx iu- iuc iue iui ium iup iur ixc ixe ixi m-r mc- mcc mce mci mcm mcp mcr mcu mcx mec mee mei mem mep mer meu mex mi- mic mie mii mim mip mir miu mix mmc mme mmi mmm mmp mmr mmu mmx mpc mpe mpi mpm mpp mpr mpu mpx mrc mre mri mrm mrp mrr mru mrx muc mue mui mum mup mur muu mux mxc mxi mxp mxr mxu p-p pcc pce pci pcm pcp pcr pcu pcx pec pee pei pem pep per peu pex pic pie pii pim pip pir piu pix pmc pme pmi pmm pmp pmr pmu pmx ppc ppe ppi ppm ppp ppr ppu ppx prc pre pri prm prp prr pru prx puc pue pui pum pup pur puu pxc pxe pxm pxr rcc rce rci rcm rcp rcr rcu rcx re- rec ree rei rem rep rer reu rex ric rie rii rim rip rir rix rmc rme rmi rmm rmp rmr rmx rpc rpe rpi rpm rpp rpr rpu rpx rrc rri rrm rrp rrr rru ruc rue rui rum rup rur ruu rux rxp rxr ucc uce uci ucm ucp ucr ucu uec uee uei uem uep uer uic uie uii uim uip uir uiu um- umc ume umi umm ump umr umu up- upc upe upi upm upp upr upu upx ur- urc ure uri urm urp urr uru urx uuc uue uum uur uuu uxc uxr uxu xci xcp xcr xcx xee xem xep xer xeu xex xic xie xii xiu xix xmc xmi xmm xmp xmr xmu xmx xpc xpe xpm xpp xrc xrx xue xui xup xxi xxp xxx