-er -ic c-- ccc cce ccg cci cck ccl ccr ccu ce- cec cee ceg cei cek cel ceq cer ceu cgc cge cgg cgi cgl cgr cgu ci- cic cie cig cii cik cil ciq cir ciu ckc cki cl- clc cle clg cli clk cll clr clu cqc cqg cqi cql crc cre crg cri crk crl crq crr cru cuc cue cug cui cuk cul cuq cur cuu ec- ecc ece ecg eci eck ecl ecq ecr ecu eec eee eeg eek eel eer egc ege egg egi egl egr egu eic eie eig eii eik eil eir eiu ekc eke ekg eki ekl ekr eku elc ele elg eli elk ell elr elu eqe eqq equ erc ere erg eri erk erl erq err eru eu- euc eue eug eui eul eur gcc gce gcg gci gck gcl gcr gcu ge- gec gee geg gei gek gel ger geu ggc ggg ggi ggr ggu gic gie gig gii gik gil gir giu glc gle glg gli glk gll glq glr glu grc gre grg gri grk grl grq grr gru gu- guc gue gug gui guk gul gur guu icc ice icg ici ick icl icq icr icu ie- iec iee ieg iei iek iel ier igc ige igg igi igk igl igr igu iic iie iii iil iir iiu ikc ike iki ikk ikl ikr iku il- ilc ile ilg ili ilk ill ilq ilr ilu iqc iqe iqu ir- irc ire irg iri irk irl irq irr iru iu- iuc iue iug iui iur kcc kce kcg kci kck kcl kcr kcu ke- kec kee keg kei kek kel ker kgc kgi kgl kgu kic kie kig kii kik kil kir kiu kkc kke kki kkk kkl kkr kku kl- klc klg kli klq klr klu kql krc krg kri krk krl krr kru kuc kue kug kui kuk kul kur kuu lcc lce lcg lci lck lcl lcq lcr lcu lec lee leg lei lek lel leq ler leu lgc lge lgg lgi lgk lgl lgr lgu lic lie lig lii lik lil liq lir liu lkg lkl lkr llc lle llg lli llk lll llq llr llu lqg lqr lrc lrg lri lrk lrr lru luc lue lug lui luk lul lur luu qcc qci qcl qec qee qgc qic qie qik qil qir qiu qki qqk qqq qqu qrc qre qrg qri qrl qru qu- que qui qul qur rcc rce rcg rci rcl rcr rcu re- rec ree reg rei rek rel req rer reu rgc rge rgg rgi rgk rgr ric rie rig rii rik ril riq rir rkc rke rkg rkk rku rlc rle rlg rli rll rlr rlu rqc rrc rrg rri rrk rrl rrq rrr rru ruc rue rug rui ruk rur ruu ucc uce ucg uci uck ucl ucr ucu uec uee ueg uei uel uer ugc uge ugg ugi ugk ugl ugr ugu uic uie uig uii uil uiq uir uiu ukc uke uki ukk ukl ukr uku ulc ule ulg uli ulk ull ulr ulu ur- urc ure urg uri urk url urr uru uuc uue uug uur uuu