-er c-- ccc ccd cce ccn cco ccp ccr cct cdc cdd cde cdn cdo cdp cdr cdt ce- cec ced cee cen ceo cep cer cet cn- cnc cnd cne cnn cno cnp cnr cnt co- coc cod coe con coo cop cor cot cpc cpd cpe cpn cpo cpp cpr cpt crc crd cre crn cro crp crr crt ctc ctd cte ctn cto ctp ctr ctt dcc dcd dce dcn dco dcp dcr dct ddc ddd dde ddn ddo ddp ddr ddt de- dec ded dee den deo dep der det dnc dnd dne dnn dno dnp dnr dnt doc dod doe don doo dop dor dot dpc dpd dpe dpn dpo dpp dpr dpt drc drd dre drn dro drp drr drt dtc dtd dte dtn dto dtp dtr dtt ec- ecc ecd ece ecn eco ecr ect ed- edc edd ede edn edo edp edr edt eec eed eee een eeo eep eer eet en- enc end ene enn eno enp enr ent eo- eoc eod eoe eon eoo eop eor eot ep- epc epd epe epn epo epp epr ept erc erd ere ern ero erp err ert etc etd ete etn eto etp etr ett ncc ncd nce ncn nco ncp ncr nct ndc ndd nde ndn ndo ndp ndr ndt ne- nec ned nee nen neo nep ner net nnc nne nnn nno nnp nnt no- noc nod noe non noo nop nor not npc npd npe npn npo npp npr npt nrc nrd nre nrn nro nrp nrr nrt ntc ntd nte ntn nto ntp ntr ntt oc- occ ocd ocn oco ocp ocr oct odc odd ode odn odo odp odr odt oec oed oee oen oeo oep oer oet on- onc ond one onn ono onp onr ont oo- ooc ood oon ooo oop oor oot op- opc opd ope opn opo opp opr opt or- orc ord ore orn oro orp orr ort ot- otc otd ote otn oto otp otr ott p-p pcc pcd pce pcn pco pcp pcr pct pdc pdd pde pdn pdo pdp pdr pdt pec ped pee pen peo pep per pet pn- pnc pnd pne pnn pno pnp pnr pnt poc pod poe pon poo pop por pot ppc ppd ppe ppn ppo ppp ppr ppt prc prd pre prn pro prp prr prt pt- ptc ptd pte ptn pto ptp ptr ptt rcc rcd rce rcn rco rcp rcr rct rdc rdd rde rdn rdo rdp rdr rdt re- rec red ree ren reo rep rer ret rnc rnd rnn rno rnp rnr rnt roc rod roe ron roo rop ror rot rpc rpd rpe rpn rpo rpp rpr rpt rrc rrd rrn rrp rrr rrt rtc rtd rte rtn rto rtp rtr rtt tcc tcd tce tcn tco tcp tcr tct tdc tdd tde tdn tdo tdp tdr tdt te- tec ted tee ten teo tep ter tet tnc tnd tne tnn tno tnp tnr tnt to- toc tod toe ton too top tor tot tpc tpd tpe tpn tpo tpp tpr tpt trc trd tre trn tro trp trr trt ttc ttd tte ttn tto ttp ttr ttt