-er -ic -up c-- ccc cce ccf ccg cci cck ccp ccr ccu ce- cec cee cef ceg cei cek cep cer ceu cfc cfe cff cfg cfi cfk cfp cfr cfu cgc cge cgg cgi cgp cgr cgu ci- cic cie cif cig cii cik cip cir ciu ckc cki cpc cpe cpf cpg cpi cpk cpp cpr cpu crc cre crf crg cri crk crp crr cru cuc cue cuf cug cui cuk cup cur cuu ec- ecc ece ecf ecg eci eck ecr ecu eec eee eef eeg eek eep eer ef- efc efe eff efg efi efp efr egc ege egf egg egi egp egr egu eic eie eif eig eii eik eip eir eiu ekc eke ekf ekg eki ekp ekr eku ep- epc epe epf epg epi epp epr epu erc ere erf erg eri erk erp err eru eu- euc eue euf eug eui eup eur fcc fce fcf fcg fci fck fcp fcr fcu fec fee fef feg fei fek fep fer feu ffc ffe fff ffg ffi ffk ffp ffr ffu fgc fge fgf fgg fgi fgp fgr fic fie fif fig fii fik fip fir fiu fkc fkf fkg fki fkk fkp fpc fpe fpg fpi fpk fpp fpr fpu frc fre frf frg fri frk frp frr fru fue fuf fug fui fuk fup fur fuu g-p gcc gce gcf gcg gci gck gcp gcr gcu ge- gec gee gef geg gei gek gep ger geu gfc gfe gff gfi gfk gfp gfr ggc ggg ggi ggp ggr ggu gic gie gif gig gii gik gip gir giu gkp gpc gpe gpf gpg gpi gpk gpp gpr gpu grc gre grf grg gri grk grp grr gru gu- guc gue guf gug gui guk gup gur guu i-f icc ice icf icg ici ick icp icr icu ie- iec iee ief ieg iei iek iep ier ifc ife iff ifg ifi ifp ifr ifu igc ige igf igg igi igk igp igr igu iic iie iif iii iip iir iiu ikc ike ikf iki ikk ikr iku ipc ipe ipf ipg ipi ipp ipr ipu ir- irc ire irf irg iri irk irp irr iru iu- iuc iue iug iui iup iur kcc kce kcg kci kck kcp kcr kcu ke- kec kee kef keg kei kek kep ker kfc kff kfg kfi kfu kgc kgf kgi kgp kgu kic kie kif kig kii kik kip kir kiu kkc kke kki kkk kkp kkr kku kpc kpe kpf kpi kpk kpp kpr kpu krc krf krg kri krk krp krr kru kuc kue kug kui kuk kup kur kuu p-p pcc pce pcf pcg pci pck pcp pcr pcu pec pee pef peg pei pek pep per peu pfc pfe pff pfg pfi pfk pfp pfr pfu pgc pge pgf pgg pgi pgk pgp pgr pic pie pif pig pii pik pip pir piu pkc pke pkf pkg pki pkp pkr pku ppc ppe ppf ppg ppi ppk ppp ppr ppu prc pre prf prg pri prk prp prr pru puc pue puf pug pui puk pup pur puu rcc rce rcf rcg rci rcp rcr rcu re- rec ree ref reg rei rek rep rer reu rfc rfe rff rfg rfi rfk rfp rfr rfu rgc rge rgf rgg rgi rgk rgp rgr ric rie rif rig rii rik rip rir rkc rke rkf rkg rkk rkp rku rpc rpe rpf rpg rpi rpk rpp rpr rpu rrc rrf rrg rri rrk rrp rrr rru ruc rue ruf rug rui ruk rup rur ruu ucc uce ucf ucg uci uck ucp ucr ucu uec uee uef ueg uei uep uer ufc ufe uff ufg ufi ufp ufr ufu ugc uge ugf ugg ugi ugk ugp ugr ugu uic uie uif uig uii uip uir uiu ukc uke ukf uki ukk ukp ukr uku up- upc upe upf upg upi upk upp upr upu ur- urc ure urf urg uri urk urp urr uru uuc uue uug uur uuu