-er -ic -up c-- ccc cce cci cck ccl ccp ccr ccs ccu ce- cec cee cei cek cel cep cer ces ceu ci- cic cie cii cik cil cip cir cis ciu ckc cki cks cl- clc cle cli clk cll clp clr cls clu cpc cpe cpi cpk cpl cpp cpr cps cpu crc cre cri crk crl crp crr crs cru csc cse csi csk csl csp csr css csu cuc cue cui cuk cul cup cur cus cuu ec- ecc ece eci eck ecl ecr ecs ecu eec eee eek eel eep eer ees eic eie eii eik eil eip eir eis eiu ekc eke eki ekl ekp ekr eks eku elc ele eli elk ell elp elr els elu ep- epc epe epi epl epp epr eps epu erc ere eri erk erl erp err ers eru es- esc ese esi esk esl esp esr ess esu eu- euc eue eui eul eup eur eus icc ice ici ick icl icp icr ics icu ie- iec iee iei iek iel iep ier ies iic iie iii iil iip iir iis iiu ikc ike iki ikk ikl ikr iks iku il- ilc ile ili ilk ill ilp ilr ils ilu ipc ipe ipi ipl ipp ipr ips ipu ir- irc ire iri irk irl irp irr irs iru is- isc ise isi isk isl isp isr iss isu iu- iuc iue iui iup iur ius kcc kce kci kck kcl kcp kcr kcs kcu ke- kec kee kei kek kel kep ker kes kic kie kii kik kil kip kir kis kiu kkc kke kki kkk kkl kkp kkr kks kku kl- klc kli klr kls klu kpc kpe kpi kpk kpl kpp kpr kps kpu krc kri krk krl krp krr krs kru ksc kse ksi ksk ksl ksp ksr kss ksu kuc kue kui kuk kul kup kur kus kuu l-p lcc lce lci lck lcl lcp lcr lcs lcu lec lee lei lek lel lep ler les leu lic lie lii lik lil lip lir lis liu lkl lkp lkr lks llc lle lli llk lll llp llr lls llu lpc lpe lpi lpk lpl lpp lpr lps lpu lrc lri lrk lrp lrr lrs lru lsc lse lsi lsk lsl lsp lsr lss lsu luc lue lui luk lul lup lur lus luu p-p pcc pce pci pck pcl pcp pcr pcs pcu pec pee pei pek pel pep per pes peu pic pie pii pik pil pip pir pis piu pkc pke pki pkl pkp pkr pks pku plc ple pli plk pll plp plr pls plu ppc ppe ppi ppk ppl ppp ppr pps ppu prc pre pri prk prl prp prr prs pru ps- psc pse psi psk psl psp psr pss psu puc pue pui puk pul pup pur pus puu rcc rce rci rcl rcp rcr rcs rcu re- rec ree rei rek rel rep rer res reu ric rie rii rik ril rip rir ris rkc rke rkk rkp rks rku rlc rle rli rll rlp rlr rls rlu rpc rpe rpi rpk rpl rpp rpr rps rpu rrc rri rrk rrl rrp rrr rrs rru rsc rse rsi rsk rsl rsp rsr rss rsu ruc rue rui ruk rup rur rus ruu scc sce sci sck scl scp scr scs scu se- sec see sei sek sel sep ser ses seu sic sie sii sik sil sip sir sis siu sk- skc ske ski skk skl skp skr sks sku slc sle sli slk sll slp slr sls slu spc spe spi spk spl spp spr sps spu sr- src sre sri srk srl srp srr srs ss- ssc sse ssi ssk ssl ssp ssr sss ssu suc sue sui suk sul sup sur sus suu ucc uce uci uck ucl ucp ucr ucs ucu uec uee uei uel uep uer ues uic uie uii uil uip uir uis uiu ukc uke uki ukk ukl ukp ukr uku ulc ule uli ulk ull ulp ulr uls ulu up- upc upe upi upk upp upr ups upu ur- urc ure uri urk url urp urr urs uru usc use usi usk usl usp usr uss usu uuc uue uur uus uuu