-er -up c-- ccc ccd cce ccn cco ccp ccr ccs ccu cdc cdd cde cdn cdo cdp cdr cds cdu ce- cec ced cee cen ceo cep cer ces ceu cn- cnc cnd cne cnn cno cnp cnr cns cnu co- coc cod coe con coo cop cor cos cou cpc cpd cpe cpn cpo cpp cpr cps cpu crc crd cre crn cro crp crr crs cru csc csd cse csn cso csp csr css csu cuc cud cue cun cuo cup cur cus cuu dcc dcd dce dcn dco dcp dcr dcs dcu ddc ddd dde ddn ddo ddp ddr dds ddu de- dec ded dee den deo dep der des deu dnc dnd dne dnn dno dnp dnr dns doc dod doe don doo dop dor dos dou dpc dpd dpe dpn dpo dpp dpr dps dpu drc drd dre drn dro drp drr drs dru dsc dsd dse dsn dso dsp dsr dss dsu duc dud due dun duo dup dur dus ec- ecc ecd ece ecn eco ecr ecs ecu ed- edc edd ede edn edo edp edr eds edu eec eed eee een eeo eep eer ees en- enc end ene enn eno enp enr ens enu eo- eoc eod eoe eon eoo eop eor eos eou ep- epc epd epe epn epo epp epr eps epu erc erd ere ern ero erp err ers eru es- esc esd ese esn eso esp esr ess esu eu- euc eud eue eun eup eur eus ncc ncd nce ncn nco ncp ncr ncs ncu ndc ndd nde ndn ndo ndp ndr nds ndu ne- nec ned nee nen neo nep ner nes neu nnc nne nnn nno nnp nns nnu no- noc nod noe non noo nop nor nos nou npc npd npe npn npo npp npr nps npu nrc nrd nre nrn nro nrp nrr nrs nru nsc nsd nse nsn nso nsp nsr nss nsu nuc nud nue nun nuo nup nur nus nuu oc- occ ocd ocn oco ocp ocr ocs ocu odc odd ode odn odo odp odr ods odu oec oed oee oen oeo oep oer oes on- onc ond one onn ono onp onr ons onu oo- ooc ood oon ooo oop oor oos op- opc opd ope opn opo opp opr ops or- orc ord ore orn oro orp orr ors oru os- osc osd ose osn oso osp osr oss osu ou- ouc oud oue oun ouo oup our ous p-p pcc pcd pce pcn pco pcp pcr pcs pcu pdc pdd pde pdn pdo pdp pdr pds pdu pec ped pee pen peo pep per pes peu pn- pnc pnd pne pnn pno pnp pnr pns pnu poc pod poe pon poo pop por pos pou ppc ppd ppe ppn ppo ppp ppr pps ppu prc prd pre prn pro prp prr prs pru ps- psc psd pse psn pso psp psr pss psu puc pud pue pun pup pur pus puu rcc rcd rce rcn rco rcp rcr rcs rcu rdc rdd rde rdn rdo rdp rdr rds rdu re- rec red ree ren reo rep rer res reu rnc rnd rnn rno rnp rnr rns rnu roc rod roe ron roo rop ror ros rou rpc rpd rpe rpn rpo rpp rpr rps rpu rrc rrd rrn rrp rrr rrs rru rsc rsd rse rsn rso rsp rsr rss rsu ruc rud rue run ruo rup rur rus ruu scc scd sce scn sco scp scr scs scu sdc sdd sde sdn sdo sdp sdr sds sdu se- sec sed see sen seo sep ser ses seu snc snd sne snn sno snp snr sns snu soc sod soe son soo sop sor sos sou spc spd spe spn spo spp spr sps spu sr- src srd sre srn sro srp srr srs ss- ssc ssd sse ssn sso ssp ssr sss ssu suc sud sue sun suo sup sur sus suu ucc ucd uce ucn uco ucp ucr ucs ucu udc udd ude udn udo udp udr uds udu uec ued uee uen uep uer ues un- unc und une unn uno unp unr uns unu uoc uod uoe uon uoo uop uor uos up- upc upd upe upn upo upp upr ups upu ur- urc urd ure urn uro urp urr urs uru usc usd use usn uso usp usr uss usu uuc uue uun uur uus uuu