-er c-- ccc cce ccn cco ccr cct ccu ccv ce- cec cee cen ceo cer cet ceu cev cn- cnc cne cnn cno cnr cnt cnu cnv co- coc coe con coo cor cot cou cov crc cre crn cro crr crt cru crv ctc cte ctn cto ctr ctt ctu ctv cuc cue cun cuo cur cut cuu cuv cvc cve cvn cvo cvr cvt cvu cvv ec- ecc ece ecn eco ecr ect ecu ecv eec eee een eeo eer eet eev en- enc ene enn eno enr ent enu env eo- eoc eoe eon eoo eor eot eou erc ere ern ero err ert eru erv etc ete etn eto etr ett etu etv eu- euc eue eun eur eut euv evc eve evn evo evr evt evv ncc nce ncn nco ncr nct ncu ncv ne- nec nee nen neo ner net neu nev nnc nne nnn nno nnt nnu nnv no- noc noe non noo nor not nou nov nrc nre nrn nro nrr nrt nru nrv ntc nte ntn nto ntr ntt ntu ntv nuc nue nun nuo nur nut nuu nuv nvc nve nvn nvt nvu nvv oc- occ ocn oco ocr oct ocu ocv oec oee oen oeo oer oet on- onc one onn ono onr ont onu oo- ooc oon ooo oor oot oov or- orc ore orn oro orr ort oru orv ot- otc ote otn oto otr ott otu otv ou- ouc oue oun ouo our out ov- ovc ove ovo ovv rcc rce rcn rco rcr rct rcu rcv re- rec ree ren reo rer ret reu rev rnc rnn rno rnr rnt rnu rnv roc roe ron roo ror rot rou rov rrc rrn rrr rrt rru rtc rte rtn rto rtr rtt rtu rtv ruc rue run ruo rur rut ruu ruv rvc rve rvn rvo rvr rvt rvu rvv tcc tce tcn tco tcr tct tcu tcv te- tec tee ten teo ter tet teu tev tnc tne tnn tno tnr tnt to- toc toe ton too tor tot tou tov trc tre trn tro trr trt tru trv ttc tte ttn tto ttr ttt ttu ttv tuc tue tun tuo tur tut tuu tuv tvc tve tvn tvo tvr tvt tvu ucc uce ucn uco ucr uct ucu ucv uec uee uen uer uet un- unc une unn uno unr unt unu unv uoc uoe uon uoo uor uot ur- urc ure urn uro urr urt uru utc ute utn uto utr utt utu utv uuc uue uun uur uut uuu uvc uve uvo uvu uvv v-e vcc vce vcn vco vcr vct vcu vec vee ven veo ver vet veu vn- vno vnr vnu vnv voc voe von voo vor vot vou vov vrc vre vrn vrr vrt vru vtc vte vto vtr vtt vtu vtv vue vur vut vuv vvc vvo vvr vvt vvv