-er c-- ccc cce ccf ccn cco ccr ccu ce- cec cee cef cen ceo cer ceu cfc cfe cff cfn cfo cfr cfu cn- cnc cne cnf cnn cno cnr cnu co- coc coe cof con coo cor cou crc cre crf crn cro crr cru cuc cue cuf cun cuo cur cuu ec- ecc ece ecf ecn eco ecr ecu eec eee eef een eeo eer ef- efc efe eff efo efr en- enc ene enf enn eno enr enu eo- eoc eoe eof eon eoo eor eou erc ere erf ern ero err eru eu- euc eue euf eun eur fcc fce fcf fcn fco fcr fcu fec fee fef fen feo fer feu ffc ffe fff ffn ffo ffr ffu fnc fne fnf fnn fnr fnu foc foe fof fon foo for fou frc fre frf frn fro frr fru fue fuf fun fuo fur fuu ncc nce ncf ncn nco ncr ncu ne- nec nee nef nen neo ner neu nfc nfe nff nfn nfo nfr nfu nnc nne nnf nnn nno nnu no- noc noe nof non noo nor nou nrc nre nrf nrn nro nrr nru nuc nue nun nuo nur nuu oc- occ ocf ocn oco ocr ocu oec oee oef oen oeo oer of- ofc ofe off ofn ofo ofr ofu on- onc one onf onn ono onr onu oo- ooc oof oon ooo oor or- orc ore orf orn oro orr oru ou- ouc oue ouf oun ouo our rcc rce rcf rcn rco rcr rcu re- rec ree ref ren reo rer reu rfc rfe rff rfn rfo rfr rfu rnc rnn rno rnr rnu roc roe rof ron roo ror rou rrc rrf rrn rrr rru ruc rue ruf run ruo rur ruu ucc uce ucf ucn uco ucr ucu uec uee uef uen uer ufc ufe uff ufn ufo ufr ufu un- unc une unf unn uno unr unu uoc uoe uon uoo uor ur- urc ure urf urn uro urr uru uuc uue uun uur uuu