-er c-- ccc cce ccf ccg ccn cco ccr ccu ce- cec cee cef ceg cen ceo cer ceu cfc cfe cff cfg cfn cfo cfr cfu cgc cge cgg cgn cgo cgr cgu cn- cnc cne cnf cng cnn cno cnr cnu co- coc coe cof cog con coo cor cou crc cre crf crg crn cro crr cru cuc cue cuf cug cun cuo cur cuu ec- ecc ece ecf ecg ecn eco ecr ecu eec eee eef eeg een eeo eer ef- efc efe eff efg efo efr egc ege egf egg egn ego egr egu en- enc ene enf eng enn eno enr enu eo- eoc eoe eof eog eon eoo eor eou erc ere erf erg ern ero err eru eu- euc eue euf eug eun eur fcc fce fcf fcg fcn fco fcr fcu fec fee fef feg fen feo fer feu ffc ffe fff ffg ffn ffo ffr ffu fgc fge fgf fgg fgn fgr fnc fne fnf fng fnn fnr fnu foc foe fof fog fon foo for fou frc fre frf frg frn fro frr fru fue fuf fug fun fuo fur fuu gcc gce gcf gcg gcn gco gcr gcu ge- gec gee gef geg gen geo ger geu gfc gfe gff gfo gfr ggc ggg ggn ggo ggr ggu gnc gne gnf gnn gno gnr gnu goc goe gof gog gon goo gor gou grc gre grf grg grn gro grr gru gu- guc gue guf gug gun guo gur guu ncc nce ncf ncg ncn nco ncr ncu ne- nec nee nef neg nen neo ner neu nfc nfe nff nfn nfo nfr nfu ngc nge ngf ngg ngn ngo ngu nnc nne nnf nng nnn nno nnu no- noc noe nof nog non noo nor nou nrc nre nrf nrg nrn nro nrr nru nuc nue nug nun nuo nur nuu oc- occ ocf ocg ocn oco ocr ocu oec oee oef oeg oen oeo oer of- ofc ofe off ofg ofn ofo ofr ofu ogc oge ogf ogg ogn ogo on- onc one onf ong onn ono onr onu oo- ooc oof oog oon ooo oor or- orc ore orf org orn oro orr oru ou- ouc oue ouf oun ouo our rcc rce rcf rcg rcn rco rcr rcu re- rec ree ref reg ren reo rer reu rfc rfe rff rfg rfn rfo rfr rfu rgc rge rgf rgg rgn rgo rgr rnc rng rnn rno rnr rnu roc roe rof rog ron roo ror rou rrc rrf rrg rrn rrr rru ruc rue ruf rug run ruo rur ruu ucc uce ucf ucg ucn uco ucr ucu uec uee uef ueg uen uer ufc ufe uff ufg ufn ufo ufr ufu ugc uge ugf ugg ugn ugo ugr ugu un- unc une unf ung unn uno unr unu uoc uoe uog uon uoo uor ur- urc ure urf urg urn uro urr uru uuc uue uug uun uur uuu