-er -ic c-- ccc cce cch cci cck ccl ccp ccr ccs ce- cec cee ceh cei cek cel cep cer ces ch- chc che chh chi chk chl chp chr chs ci- cic cie cih cii cik cil cip cir cis ckc ckh cki cks cl- clc cle clh cli clk cll clp clr cls cpc cpe cph cpi cpk cpl cpp cpr cps crc cre crh cri crk crl crp crr crs csc cse csh csi csk csl csp csr css ec- ecc ece ech eci eck ecl ecr ecs eec eee eek eel eep eer ees ehc ehe ehh ehi ehl ehp ehr ehs eic eie eii eik eil eip eir eis ekc eke ekh eki ekl ekp ekr eks elc ele elh eli elk ell elp elr els ep- epc epe eph epi epl epp epr eps erc ere erh eri erk erl erp err ers es- esc ese esh esi esk esl esp esr ess h-i hcc hce hch hci hck hcl hcp hcr hcs he- hec hee heh hei hek hel hep her hes hhc hhe hhh hhi hhk hhl hhp hhr hhs hic hie hih hii hik hil hip hir his hkh hki hkk hkl hkp hkr hks hlc hle hlh hli hll hlp hlr hls hpc hpe hph hpi hpk hpl hpp hpr hps hr- hrc hre hrh hri hrk hrl hrp hrr hrs hsc hse hsh hsi hsk hsl hsp hsr hss icc ice ich ici ick icl icp icr ics ie- iec iee iei iek iel iep ier ies ihc ihe ihh ihi ihk ihl ihp ihr ihs iic iie iih iii iil iip iir iis ikc ike iki ikk ikl ikr iks il- ilc ile ilh ili ilk ill ilp ilr ils ipc ipe ipi ipl ipp ipr ips ir- irc ire iri irk irl irp irr irs is- isc ise ish isi isk isl isp isr iss kcc kce kch kci kck kcl kcp kcr kcs ke- kec kee keh kei kek kel kep ker kes khe khh khi khk khr khs kic kie kih kii kik kil kip kir kis kkc kke kkh kki kkk kkl kkp kkr kks kl- klc klh kli klr kls kpc kpe kph kpi kpk kpl kpp kpr kps krc kri krk krl krp krr krs ksc kse ksh ksi ksk ksl ksp ksr kss l-p lcc lce lch lci lck lcl lcp lcr lcs lec lee leh lei lek lel lep ler les lhc lhh lhi lhk lhp lhr lhs lic lie lih lii lik lil lip lir lis lkh lkl lkp lkr lks llc lle lli llk lll llp llr lls lpc lpe lph lpi lpk lpl lpp lpr lps lrc lrh lri lrk lrp lrr lrs lsc lse lsh lsi lsk lsl lsp lsr lss p-p pcc pce pch pci pck pcl pcp pcr pcs pec pee peh pei pek pel pep per pes phc phe phi phk phl php phr phs pic pie pih pii pik pil pip pir pis pkc pke pki pkl pkp pkr pks plc ple plh pli plk pll plp plr pls ppc ppe pph ppi ppk ppl ppp ppr pps prc pre prh pri prk prl prp prr prs ps- psc pse psh psi psk psl psp psr pss rcc rce rch rci rcl rcp rcr rcs re- rec ree reh rei rek rel rep rer res rh- rhc rhe rhh rhi rhl rhp rhr rhs ric rie rih rii rik ril rip rir ris rkc rke rkk rkp rks rlc rle rlh rli rll rlp rlr rls rpc rpe rph rpi rpk rpl rpp rpr rps rrc rrh rri rrk rrl rrp rrr rrs rsc rse rsh rsi rsk rsl rsp rsr rss scc sce sch sci sck scl scp scr scs se- sec see seh sei sek sel sep ser ses sh- shc she shh shi shk shl shp shr shs sic sie sih sii sik sil sip sir sis sk- skc ske skh ski skk skl skp skr sks slc sle slh sli slk sll slp slr sls spc spe sph spi spk spl spp spr sps sr- src sre srh sri srk srl srp srr srs ss- ssc sse ssh ssi ssk ssl ssp ssr sss