-er -ic c-- ccc cce ccf ccg cci ccn cco ccr ccu ce- cec cee cef ceg cei cen ceo cer ceu cfc cfe cff cfg cfi cfn cfo cfr cfu cgc cge cgg cgi cgn cgo cgr cgu ci- cic cie cif cig cii cin cio cir ciu cn- cnc cne cnf cng cni cnn cno cnr cnu co- coc coe cof cog coi con coo cor cou crc cre crf crg cri crn cro crr cru cuc cue cuf cug cui cun cuo cur cuu ec- ecc ece ecf ecg eci ecn eco ecr ecu eec eee eef eeg een eeo eer ef- efc efe eff efg efi efo efr egc ege egf egg egi egn ego egr egu eic eie eif eig eii ein eio eir eiu en- enc ene enf eng eni enn eno enr enu eo- eoc eoe eof eog eoi eon eoo eor eou erc ere erf erg eri ern ero err eru eu- euc eue euf eug eui eun eur fcc fce fcf fcg fci fcn fco fcr fcu fec fee fef feg fei fen feo fer feu ffc ffe fff ffg ffi ffn ffo ffr ffu fgc fge fgf fgg fgi fgn fgr fic fie fif fig fii fin fir fiu fnc fne fnf fng fni fnn fnr fnu foc foe fof fog foi fon foo for fou frc fre frf frg fri frn fro frr fru fue fuf fug fui fun fuo fur fuu gcc gce gcf gcg gci gcn gco gcr gcu ge- gec gee gef geg gei gen geo ger geu gfc gfe gff gfi gfo gfr ggc ggg ggi ggn ggo ggr ggu gic gie gif gig gii gin gio gir giu gnc gne gnf gni gnn gno gnr gnu goc goe gof gog goi gon goo gor gou grc gre grf grg gri grn gro grr gru gu- guc gue guf gug gui gun guo gur guu i-f icc ice icf icg ici icn ico icr icu ie- iec iee ief ieg iei ien ier ifc ife iff ifg ifi ifn ifo ifr ifu igc ige igf igg igi ign igo igr igu iic iie iif iii iin iio iir iiu in- inc ine inf ing ini inn ino inr inu io- ioc ioe iof iog ioi ion ioo ior iou ir- irc ire irf irg iri irn iro irr iru iu- iuc iue iug iui iur n-i ncc nce ncf ncg nci ncn nco ncr ncu ne- nec nee nef neg nei nen neo ner neu nfc nfe nff nfi nfn nfo nfr nfu ngc nge ngf ngg ngi ngn ngo ngu nic nie nif nig nii nin nio nir niu nnc nne nnf nng nni nnn nno nnu no- noc noe nof nog noi non noo nor nou nrc nre nrf nrg nri nrn nro nrr nru nuc nue nug nui nun nuo nur nuu o-i oc- occ ocf ocg oci ocn oco ocr ocu oec oee oef oeg oei oen oeo oer of- ofc ofe off ofg ofi ofn ofo ofr ofu ogc oge ogf ogg ogi ogn ogo oic oie oif oii oin oio oir oiu on- onc one onf ong oni onn ono onr onu oo- ooc oof oog ooi oon ooo oor or- orc ore orf org ori orn oro orr oru ou- ouc oue ouf oui oun ouo our rcc rce rcf rcg rci rcn rco rcr rcu re- rec ree ref reg rei ren reo rer reu rfc rfe rff rfg rfi rfn rfo rfr rfu rgc rge rgf rgg rgi rgn rgo rgr ric rie rif rig rii rin rio rir rnc rng rni rnn rno rnr rnu roc roe rof rog roi ron roo ror rou rrc rrf rrg rri rrn rrr rru ruc rue ruf rug rui run ruo rur ruu ucc uce ucf ucg uci ucn uco ucr ucu uec uee uef ueg uei uen uer ufc ufe uff ufg ufi ufn ufo ufr ufu ugc uge ugf ugg ugi ugn ugo ugr ugu uic uie uif uig uii uin uio uir uiu un- unc une unf ung uni unn uno unr unu uoc uoe uog uon uoo uor ur- urc ure urf urg uri urn uro urr uru uuc uue uug uun uur uuu