-er -up c-- ccc ccd cce ccn cco ccp ccr ccu cdc cdd cde cdn cdo cdp cdr cdu ce- cec ced cee cen ceo cep cer ceu cn- cnc cnd cne cnn cno cnp cnr cnu co- coc cod coe con coo cop cor cou cpc cpd cpe cpn cpo cpp cpr cpu crc crd cre crn cro crp crr cru cuc cud cue cun cuo cup cur cuu dcc dcd dce dcn dco dcp dcr dcu ddc ddd dde ddn ddo ddp ddr ddu de- dec ded dee den deo dep der deu dnc dnd dne dnn dno dnp dnr doc dod doe don doo dop dor dou dpc dpd dpe dpn dpo dpp dpr dpu drc drd dre drn dro drp drr dru duc dud due dun duo dup dur ec- ecc ecd ece ecn eco ecr ecu ed- edc edd ede edn edo edp edr edu eec eed eee een eeo eep eer en- enc end ene enn eno enp enr enu eo- eoc eod eoe eon eoo eop eor eou ep- epc epd epe epn epo epp epr epu erc erd ere ern ero erp err eru eu- euc eud eue eun eup eur ncc ncd nce ncn nco ncp ncr ncu ndc ndd nde ndn ndo ndp ndr ndu ne- nec ned nee nen neo nep ner neu nnc nne nnn nno nnp nnu no- noc nod noe non noo nop nor nou npc npd npe npn npo npp npr npu nrc nrd nre nrn nro nrp nrr nru nuc nud nue nun nuo nup nur nuu oc- occ ocd ocn oco ocp ocr ocu odc odd ode odn odo odp odr odu oec oed oee oen oeo oep oer on- onc ond one onn ono onp onr onu oo- ooc ood oon ooo oop oor op- opc opd ope opn opo opp opr or- orc ord ore orn oro orp orr oru ou- ouc oud oue oun ouo oup our p-p pcc pcd pce pcn pco pcp pcr pcu pdc pdd pde pdn pdo pdp pdr pdu pec ped pee pen peo pep per peu pn- pnc pnd pne pnn pno pnp pnr pnu poc pod poe pon poo pop por pou ppc ppd ppe ppn ppo ppp ppr ppu prc prd pre prn pro prp prr pru puc pud pue pun pup pur puu rcc rcd rce rcn rco rcp rcr rcu rdc rdd rde rdn rdo rdp rdr rdu re- rec red ree ren reo rep rer reu rnc rnd rnn rno rnp rnr rnu roc rod roe ron roo rop ror rou rpc rpd rpe rpn rpo rpp rpr rpu rrc rrd rrn rrp rrr rru ruc rud rue run ruo rup rur ruu ucc ucd uce ucn uco ucp ucr ucu udc udd ude udn udo udp udr udu uec ued uee uen uep uer un- unc und une unn uno unp unr unu uoc uod uoe uon uoo uop uor up- upc upd upe upn upo upp upr upu ur- urc urd ure urn uro urp urr uru uuc uue uun uur uuu