-er -up c-- ccc ccd cce cco ccp ccr cct ccu ccv cdc cdd cde cdo cdp cdr cdt cdu cdv ce- cec ced cee ceo cep cer cet ceu cev co- coc cod coe coo cop cor cot cou cov cpc cpd cpe cpo cpp cpr cpt cpu cpv crc crd cre cro crp crr crt cru crv ctc ctd cte cto ctp ctr ctt ctu ctv cuc cud cue cuo cup cur cut cuu cuv cvc cvd cve cvo cvp cvr cvt cvu cvv dcc dcd dce dco dcp dcr dct dcu dcv ddc ddd dde ddo ddp ddr ddt ddu de- dec ded dee deo dep der det deu dev doc dod doe doo dop dor dot dou dov dpc dpd dpe dpo dpp dpr dpt dpu dpv drc drd dre dro drp drr drt dru drv dtc dtd dte dto dtp dtr dtt dtu dtv duc dud due duo dup dur dut duv dvc dvd dve dvp dvr dvt dvu ec- ecc ecd ece eco ecr ect ecu ecv ed- edc edd ede edo edp edr edt edu eec eed eee eeo eep eer eet eev eo- eoc eod eoe eoo eop eor eot eou ep- epc epd epe epo epp epr ept epu erc erd ere ero erp err ert eru erv etc etd ete eto etp etr ett etu etv eu- euc eud eue eup eur eut euv evc evd eve evo evp evr evt evv oc- occ ocd oco ocp ocr oct ocu ocv odc odd ode odo odp odr odt odu odv oec oed oee oeo oep oer oet oo- ooc ood ooo oop oor oot oov op- opc opd ope opo opp opr opt opv or- orc ord ore oro orp orr ort oru orv ot- otc otd ote oto otp otr ott otu otv ou- ouc oud oue ouo oup our out ov- ovc ovd ove ovo ovp ovv p-p pcc pcd pce pco pcp pcr pct pcu pcv pdc pdd pde pdo pdp pdr pdt pdu pdv pec ped pee peo pep per pet peu pev poc pod poe poo pop por pot pou pov ppc ppd ppe ppo ppp ppr ppt ppu ppv prc prd pre pro prp prr prt pru prv pt- ptc ptd pte pto ptp ptr ptt ptu ptv puc pud pue pup pur put puu pvc pvd pve pvo pvp pvr pvt pvu pvv rcc rcd rce rco rcp rcr rct rcu rcv rdc rdd rde rdo rdp rdr rdt rdu rdv re- rec red ree reo rep rer ret reu rev roc rod roe roo rop ror rot rou rov rpc rpd rpe rpo rpp rpr rpt rpu rpv rrc rrd rrp rrr rrt rru rtc rtd rte rto rtp rtr rtt rtu rtv ruc rud rue ruo rup rur rut ruu ruv rvc rvd rve rvo rvp rvr rvt rvu rvv tcc tcd tce tco tcp tcr tct tcu tcv tdc tdd tde tdo tdp tdr tdt tdu tdv te- tec ted tee teo tep ter tet teu tev to- toc tod toe too top tor tot tou tov tpc tpd tpe tpo tpp tpr tpt tpu tpv trc trd tre tro trp trr trt tru trv ttc ttd tte tto ttp ttr ttt ttu ttv tuc tud tue tuo tup tur tut tuu tuv tvc tvd tve tvo tvp tvr tvt tvu ucc ucd uce uco ucp ucr uct ucu ucv udc udd ude udo udp udr udt udu udv uec ued uee uep uer uet uoc uod uoe uoo uop uor uot up- upc upd upe upo upp upr upt upu upv ur- urc urd ure uro urp urr urt uru utc utd ute uto utp utr utt utu utv uuc uue uur uut uuu uvc uve uvo uvu uvv v-e vcc vcd vce vco vcp vcr vct vcu vdc vdd vde vdo vdp vdr vdt vdu vdv vec ved vee veo vep ver vet veu voc vod voe voo vop vor vot vou vov vpc vpd vpe vpo vpp vpr vpt vpu vrc vrd vre vrp vrr vrt vru vtc vte vto vtr vtt vtu vtv vue vup vur vut vuv vvc vvo vvr vvt vvv