-er c-- ccc ccd cce ccl ccn ccr ccu cdc cdd cde cdl cdn cdr cdu ce- cec ced cee cel cen cer ceu cl- clc cld cle cll cln clr clu cn- cnc cnd cne cnl cnn cnr cnu crc crd cre crl crn crr cru cuc cud cue cul cun cur cuu dcc dcd dce dcl dcn dcr dcu ddc ddd dde ddl ddn ddr ddu de- dec ded dee del den der deu dl- dlc dld dle dll dlr dlu dnc dnd dne dnl dnn dnr drc drd dre drl drn drr dru duc dud due dul dun dur ec- ecc ecd ece ecl ecn ecr ecu ed- edc edd ede edl edn edr edu eec eed eee eel een eer elc eld ele ell eln elr elu en- enc end ene enl enn enr enu erc erd ere erl ern err eru eu- euc eud eue eul eun eur lcc lcd lce lcl lcn lcr lcu ldc ldd lde ldl ldn ldr ldu lec led lee lel len ler leu llc lld lle lll lln llr llu lnc lnd lne lnl lnn lnr lnu lrc lrd lrn lrr lru luc lud lue lul lun lur luu ncc ncd nce ncl ncn ncr ncu ndc ndd nde ndl ndn ndr ndu ne- nec ned nee nel nen ner neu nlc nld nle nll nln nlr nlu nnc nne nnl nnn nnu nrc nrd nre nrl nrn nrr nru nuc nud nue nul nun nur nuu rcc rcd rce rcl rcn rcr rcu rdc rdd rde rdl rdn rdr rdu re- rec red ree rel ren rer reu rlc rld rle rll rln rlr rlu rnc rnd rnn rnr rnu rrc rrd rrl rrn rrr rru ruc rud rue run rur ruu ucc ucd uce ucl ucn ucr ucu udc udd ude udl udn udr udu uec ued uee uel uen uer ulc uld ule ull uln ulr ulu un- unc und une unl unn unr unu ur- urc urd ure url urn urr uru uuc uue uun uur uuu