-er -ol c-- ccc ccd cce ccl ccn cco ccp ccr cdc cdd cde cdl cdn cdo cdp cdr ce- cec ced cee cel cen ceo cep cer cl- clc cld cle cll cln clo clp clr cn- cnc cnd cne cnl cnn cno cnp cnr co- coc cod coe col con coo cop cor cpc cpd cpe cpl cpn cpo cpp cpr crc crd cre crl crn cro crp crr dcc dcd dce dcl dcn dco dcp dcr ddc ddd dde ddl ddn ddo ddp ddr de- dec ded dee del den deo dep der dl- dlc dld dle dll dlo dlp dlr dnc dnd dne dnl dnn dno dnp dnr doc dod doe dol don doo dop dor dpc dpd dpe dpl dpn dpo dpp dpr drc drd dre drl drn dro drp drr ec- ecc ecd ece ecl ecn eco ecr ed- edc edd ede edl edn edo edp edr eec eed eee eel een eeo eep eer elc eld ele ell eln elo elp elr en- enc end ene enl enn eno enp enr eo- eoc eod eoe eol eon eoo eop eor ep- epc epd epe epl epn epo epp epr erc erd ere erl ern ero erp err l-p lcc lcd lce lcl lcn lco lcp lcr ldc ldd lde ldl ldn ldo ldp ldr lec led lee lel len leo lep ler llc lld lle lll lln llo llp llr lnc lnd lne lnl lnn lno lnp lnr loc lod loe lol lon loo lop lor lpc lpd lpe lpl lpn lpo lpp lpr lrc lrd lrn lro lrp lrr ncc ncd nce ncl ncn nco ncp ncr ndc ndd nde ndl ndn ndo ndp ndr ne- nec ned nee nel nen neo nep ner nlc nld nle nll nln nlo nlp nlr nnc nne nnl nnn nno nnp no- noc nod noe nol non noo nop nor npc npd npe npl npn npo npp npr nrc nrd nre nrl nrn nro nrp nrr oc- occ ocd ocl ocn oco ocp ocr odc odd ode odl odn odo odp odr oec oed oee oel oen oeo oep oer olc old ole oll oln olo olp on- onc ond one onl onn ono onp onr oo- ooc ood ool oon ooo oop oor op- opc opd ope opl opn opo opp opr or- orc ord ore orl orn oro orp orr p-p pcc pcd pce pcl pcn pco pcp pcr pdc pdd pde pdl pdn pdo pdp pdr pec ped pee pel pen peo pep per plc pld ple pll pln plo plp plr pn- pnc pnd pne pnl pnn pno pnp pnr poc pod poe pol pon poo pop por ppc ppd ppe ppl ppn ppo ppp ppr prc prd pre prl prn pro prp prr rcc rcd rce rcl rcn rco rcp rcr rdc rdd rde rdl rdn rdo rdp rdr re- rec red ree rel ren reo rep rer rlc rld rle rll rln rlo rlp rlr rnc rnd rnn rno rnp rnr roc rod roe rol ron roo rop ror rpc rpd rpe rpl rpn rpo rpp rpr rrc rrd rrl rrn rrp rrr