-er -ic -up c-- ccc cce ccg cci cck ccp ccr ccs ccu ce- cec cee ceg cei cek cep cer ces ceu cgc cge cgg cgi cgp cgr cgs cgu ci- cic cie cig cii cik cip cir cis ciu ckc cki cks cpc cpe cpg cpi cpk cpp cpr cps cpu crc cre crg cri crk crp crr crs cru csc cse csg csi csk csp csr css csu cuc cue cug cui cuk cup cur cus cuu ec- ecc ece ecg eci eck ecr ecs ecu eec eee eeg eek eep eer ees egc ege egg egi egp egr egs egu eic eie eig eii eik eip eir eis eiu ekc eke ekg eki ekp ekr eks eku ep- epc epe epg epi epp epr eps epu erc ere erg eri erk erp err ers eru es- esc ese esg esi esk esp esr ess esu eu- euc eue eug eui eup eur eus g-p gcc gce gcg gci gck gcp gcr gcs gcu ge- gec gee geg gei gek gep ger ges geu ggc ggg ggi ggp ggr ggs ggu gic gie gig gii gik gip gir gis giu gkp gks gpc gpe gpg gpi gpk gpp gpr gps gpu grc gre grg gri grk grp grr grs gru gsc gse gsg gsi gsk gsp gsr gss gsu gu- guc gue gug gui guk gup gur gus guu icc ice icg ici ick icp icr ics icu ie- iec iee ieg iei iek iep ier ies igc ige igg igi igk igp igr igs igu iic iie iii iip iir iis iiu ikc ike iki ikk ikr iks iku ipc ipe ipg ipi ipp ipr ips ipu ir- irc ire irg iri irk irp irr irs iru is- isc ise isg isi isk isp isr iss isu iu- iuc iue iug iui iup iur ius kcc kce kcg kci kck kcp kcr kcs kcu ke- kec kee keg kei kek kep ker kes kgc kgi kgp kgs kgu kic kie kig kii kik kip kir kis kiu kkc kke kki kkk kkp kkr kks kku kpc kpe kpi kpk kpp kpr kps kpu krc krg kri krk krp krr krs kru ksc kse ksg ksi ksk ksp ksr kss ksu kuc kue kug kui kuk kup kur kus kuu p-p pcc pce pcg pci pck pcp pcr pcs pcu pec pee peg pei pek pep per pes peu pgc pge pgg pgi pgk pgp pgr pgs pic pie pig pii pik pip pir pis piu pkc pke pkg pki pkp pkr pks pku ppc ppe ppg ppi ppk ppp ppr pps ppu prc pre prg pri prk prp prr prs pru ps- psc pse psg psi psk psp psr pss psu puc pue pug pui puk pup pur pus puu rcc rce rcg rci rcp rcr rcs rcu re- rec ree reg rei rek rep rer res reu rgc rge rgg rgi rgk rgp rgr rgs ric rie rig rii rik rip rir ris rkc rke rkg rkk rkp rks rku rpc rpe rpg rpi rpk rpp rpr rps rpu rrc rrg rri rrk rrp rrr rrs rru rsc rse rsg rsi rsk rsp rsr rss rsu ruc rue rug rui ruk rup rur rus ruu scc sce scg sci sck scp scr scs scu se- sec see seg sei sek sep ser ses seu sgc sge sgg sgi sgk sgp sgr sgs sgu sic sie sig sii sik sip sir sis siu sk- skc ske skg ski skk skp skr sks sku spc spe spg spi spk spp spr sps spu sr- src sre srg sri srk srp srr srs ss- ssc sse ssg ssi ssk ssp ssr sss ssu suc sue sug sui suk sup sur sus suu ucc uce ucg uci uck ucp ucr ucs ucu uec uee ueg uei uep uer ues ugc uge ugg ugi ugk ugp ugr ugs ugu uic uie uig uii uip uir uis uiu ukc uke uki ukk ukp ukr uku up- upc upe upg upi upk upp upr ups upu ur- urc ure urg uri urk urp urr urs uru usc use usg usi usk usp usr uss usu uuc uue uug uur uus uuu