-er -up c-- ccc cce cco ccp ccr cct ccu ccv ce- cec cee ceo cep cer cet ceu cev co- coc coe coo cop cor cot cou cov cpc cpe cpo cpp cpr cpt cpu cpv crc cre cro crp crr crt cru crv ctc cte cto ctp ctr ctt ctu ctv cuc cue cuo cup cur cut cuu cuv cvc cve cvo cvp cvr cvt cvu cvv ec- ecc ece eco ecr ect ecu ecv eec eee eeo eep eer eet eev eo- eoc eoe eoo eop eor eot eou ep- epc epe epo epp epr ept epu erc ere ero erp err ert eru erv etc ete eto etp etr ett etu etv eu- euc eue eup eur eut euv evc eve evo evp evr evt evv oc- occ oco ocp ocr oct ocu ocv oec oee oeo oep oer oet oo- ooc ooo oop oor oot oov op- opc ope opo opp opr opt opv or- orc ore oro orp orr ort oru orv ot- otc ote oto otp otr ott otu otv ou- ouc oue ouo oup our out ov- ovc ove ovo ovp ovv p-p pcc pce pco pcp pcr pct pcu pcv pec pee peo pep per pet peu pev poc poe poo pop por pot pou pov ppc ppe ppo ppp ppr ppt ppu ppv prc pre pro prp prr prt pru prv pt- ptc pte pto ptp ptr ptt ptu ptv puc pue pup pur put puu pvc pve pvo pvp pvr pvt pvu pvv rcc rce rco rcp rcr rct rcu rcv re- rec ree reo rep rer ret reu rev roc roe roo rop ror rot rou rov rpc rpe rpo rpp rpr rpt rpu rpv rrc rrp rrr rrt rru rtc rte rto rtp rtr rtt rtu rtv ruc rue ruo rup rur rut ruu ruv rvc rve rvo rvp rvr rvt rvu rvv tcc tce tco tcp tcr tct tcu tcv te- tec tee teo tep ter tet teu tev to- toc toe too top tor tot tou tov tpc tpe tpo tpp tpr tpt tpu tpv trc tre tro trp trr trt tru trv ttc tte tto ttp ttr ttt ttu ttv tuc tue tuo tup tur tut tuu tuv tvc tve tvo tvp tvr tvt tvu ucc uce uco ucp ucr uct ucu ucv uec uee uep uer uet uoc uoe uoo uop uor uot up- upc upe upo upp upr upt upu upv ur- urc ure uro urp urr urt uru utc ute uto utp utr utt utu utv uuc uue uur uut uuu uvc uve uvo uvu uvv v-e vcc vce vco vcp vcr vct vcu vec vee veo vep ver vet veu voc voe voo vop vor vot vou vov vpc vpe vpo vpp vpr vpt vpu vrc vre vrp vrr vrt vru vtc vte vto vtr vtt vtu vtv vue vup vur vut vuv vvc vvo vvr vvt vvv