-er c-- ccc cce ccf ccl ccn ccr ccu ce- cec cee cef cel cen cer ceu cfc cfe cff cfl cfn cfr cfu cl- clc cle clf cll cln clr clu cn- cnc cne cnf cnl cnn cnr cnu crc cre crf crl crn crr cru cuc cue cuf cul cun cur cuu ec- ecc ece ecf ecl ecn ecr ecu eec eee eef eel een eer ef- efc efe eff efl efr elc ele elf ell eln elr elu en- enc ene enf enl enn enr enu erc ere erf erl ern err eru eu- euc eue euf eul eun eur fcc fce fcf fcl fcn fcr fcu fec fee fef fel fen fer feu ffc ffe fff ffl ffn ffr ffu flc fle flf fll fln flr flu fnc fne fnf fnl fnn fnr fnu frc fre frf frl frn frr fru fue fuf ful fun fur fuu lcc lce lcf lcl lcn lcr lcu lec lee lef lel len ler leu lfc lfe lff lfl lfn lfr lfu llc lle llf lll lln llr llu lnc lne lnl lnn lnr lnu lrc lrf lrn lrr lru luc lue luf lul lun lur luu ncc nce ncf ncl ncn ncr ncu ne- nec nee nef nel nen ner neu nfc nfe nff nfl nfn nfr nfu nlc nle nlf nll nln nlr nlu nnc nne nnf nnl nnn nnu nrc nre nrf nrl nrn nrr nru nuc nue nul nun nur nuu rcc rce rcf rcl rcn rcr rcu re- rec ree ref rel ren rer reu rfc rfe rff rfl rfn rfr rfu rlc rle rlf rll rln rlr rlu rnc rnn rnr rnu rrc rrf rrl rrn rrr rru ruc rue ruf run rur ruu ucc uce ucf ucl ucn ucr ucu uec uee uef uel uen uer ufc ufe uff ufl ufn ufr ufu ulc ule ulf ull uln ulr ulu un- unc une unf unl unn unr unu ur- urc ure urf url urn urr uru uuc uue uun uur uuu