-er -ic c-- ccc cce ccg cci cck ccn cco ccr ccu ce- cec cee ceg cei cek cen ceo cer ceu cgc cge cgg cgi cgn cgo cgr cgu ci- cic cie cig cii cik cin cio cir ciu ckc cki cko cn- cnc cne cng cni cnn cno cnr cnu co- coc coe cog coi cok con coo cor cou crc cre crg cri crk crn cro crr cru cuc cue cug cui cuk cun cuo cur cuu ec- ecc ece ecg eci eck ecn eco ecr ecu eec eee eeg eek een eeo eer egc ege egg egi egn ego egr egu eic eie eig eii eik ein eio eir eiu ekc eke ekg eki eko ekr eku en- enc ene eng eni enk enn eno enr enu eo- eoc eoe eog eoi eok eon eoo eor eou erc ere erg eri erk ern ero err eru eu- euc eue eug eui eun eur gcc gce gcg gci gck gcn gco gcr gcu ge- gec gee geg gei gek gen geo ger geu ggc ggg ggi ggn ggo ggr ggu gic gie gig gii gik gin gio gir giu gkn gko gnc gne gni gnn gno gnr gnu goc goe gog goi gok gon goo gor gou grc gre grg gri grk grn gro grr gru gu- guc gue gug gui guk gun guo gur guu icc ice icg ici ick icn ico icr icu ie- iec iee ieg iei iek ien ier igc ige igg igi igk ign igo igr igu iic iie iii iin iio iir iiu ikc ike iki ikk iko ikr iku in- inc ine ing ini ink inn ino inr inu io- ioc ioe iog ioi ion ioo ior iou ir- irc ire irg iri irk irn iro irr iru iu- iuc iue iug iui iur kcc kce kcg kci kck kcn kcr kcu ke- kec kee keg kei kek ken keo ker kgc kgi kgo kgu kic kie kig kii kik kin kio kir kiu kkc kke kki kkk kkn kkr kku kn- knc kne kng kni knk knn kno knr knu koc koe kog koi kok kon koo kor kou krc krg kri krk krn kro krr kru kuc kue kug kui kuk kun kur kuu n-i ncc nce ncg nci nck ncn nco ncr ncu ne- nec nee neg nei nek nen neo ner neu ngc nge ngg ngi ngk ngn ngo ngu nic nie nig nii nik nin nio nir niu nkc nke nki nkk nkn nko nkr nku nnc nne nng nni nnk nnn nno nnu no- noc noe nog noi nok non noo nor nou nrc nre nrg nri nrk nrn nro nrr nru nuc nue nug nui nuk nun nuo nur nuu o-i oc- occ ocg oci ock ocn oco ocr ocu oec oee oeg oei oen oeo oer ogc oge ogg ogi ogn ogo oic oie oii oik oin oio oir oiu okc oke okg oki okk oko okr oku on- onc one ong oni onk onn ono onr onu oo- ooc oog ooi ook oon ooo oor or- orc ore org ori ork orn oro orr oru ou- ouc oue oui ouk oun ouo our rcc rce rcg rci rcn rco rcr rcu re- rec ree reg rei rek ren reo rer reu rgc rge rgg rgi rgk rgn rgo rgr ric rie rig rii rik rin rio rir rkc rke rkg rkk rko rku rnc rng rni rnn rno rnr rnu roc roe rog roi rok ron roo ror rou rrc rrg rri rrk rrn rrr rru ruc rue rug rui ruk run ruo rur ruu ucc uce ucg uci uck ucn uco ucr ucu uec uee ueg uei uen uer ugc uge ugg ugi ugk ugn ugo ugr ugu uic uie uig uii uin uio uir uiu ukc uke uki ukk ukn ukr uku un- unc une ung uni unk unn uno unr unu uoc uoe uog uok uon uoo uor ur- urc ure urg uri urk urn uro urr uru uuc uue uug uun uur uuu