-er c-- ccc ccd cce ccn cco ccr cct ccu cdc cdd cde cdn cdo cdr cdt cdu ce- cec ced cee cen ceo cer cet ceu cn- cnc cnd cne cnn cno cnr cnt cnu co- coc cod coe con coo cor cot cou crc crd cre crn cro crr crt cru ctc ctd cte ctn cto ctr ctt ctu cuc cud cue cun cuo cur cut cuu dcc dcd dce dcn dco dcr dct dcu ddc ddd dde ddn ddo ddr ddt ddu de- dec ded dee den deo der det deu dnc dnd dne dnn dno dnr dnt doc dod doe don doo dor dot dou drc drd dre drn dro drr drt dru dtc dtd dte dtn dto dtr dtt dtu duc dud due dun duo dur dut ec- ecc ecd ece ecn eco ecr ect ecu ed- edc edd ede edn edo edr edt edu eec eed eee een eeo eer eet en- enc end ene enn eno enr ent enu eo- eoc eod eoe eon eoo eor eot eou erc erd ere ern ero err ert eru etc etd ete etn eto etr ett etu eu- euc eud eue eun eur eut ncc ncd nce ncn nco ncr nct ncu ndc ndd nde ndn ndo ndr ndt ndu ne- nec ned nee nen neo ner net neu nnc nne nnn nno nnt nnu no- noc nod noe non noo nor not nou nrc nrd nre nrn nro nrr nrt nru ntc ntd nte ntn nto ntr ntt ntu nuc nud nue nun nuo nur nut nuu oc- occ ocd ocn oco ocr oct ocu odc odd ode odn odo odr odt odu oec oed oee oen oeo oer oet on- onc ond one onn ono onr ont onu oo- ooc ood oon ooo oor oot or- orc ord ore orn oro orr ort oru ot- otc otd ote otn oto otr ott otu ou- ouc oud oue oun ouo our out rcc rcd rce rcn rco rcr rct rcu rdc rdd rde rdn rdo rdr rdt rdu re- rec red ree ren reo rer ret reu rnc rnd rnn rno rnr rnt rnu roc rod roe ron roo ror rot rou rrc rrd rrn rrr rrt rru rtc rtd rte rtn rto rtr rtt rtu ruc rud rue run ruo rur rut ruu tcc tcd tce tcn tco tcr tct tcu tdc tdd tde tdn tdo tdr tdt tdu te- tec ted tee ten teo ter tet teu tnc tnd tne tnn tno tnr tnt to- toc tod toe ton too tor tot tou trc trd tre trn tro trr trt tru ttc ttd tte ttn tto ttr ttt ttu tuc tud tue tun tuo tur tut tuu ucc ucd uce ucn uco ucr uct ucu udc udd ude udn udo udr udt udu uec ued uee uen uer uet un- unc und une unn uno unr unt unu uoc uod uoe uon uoo uor uot ur- urc urd ure urn uro urr urt uru utc utd ute utn uto utr utt utu uuc uue uun uur uut uuu