-er c-- ccc cce ccn ccr cct ccu ccv ce- cec cee cen cer cet ceu cev cn- cnc cne cnn cnr cnt cnu cnv crc cre crn crr crt cru crv ctc cte ctn ctr ctt ctu ctv cuc cue cun cur cut cuu cuv cvc cve cvn cvr cvt cvu cvv ec- ecc ece ecn ecr ect ecu ecv eec eee een eer eet eev en- enc ene enn enr ent enu env erc ere ern err ert eru erv etc ete etn etr ett etu etv eu- euc eue eun eur eut euv evc eve evn evr evt evv ncc nce ncn ncr nct ncu ncv ne- nec nee nen ner net neu nev nnc nne nnn nnt nnu nnv nrc nre nrn nrr nrt nru nrv ntc nte ntn ntr ntt ntu ntv nuc nue nun nur nut nuu nuv nvc nve nvn nvt nvu nvv rcc rce rcn rcr rct rcu rcv re- rec ree ren rer ret reu rev rnc rnn rnr rnt rnu rnv rrc rrn rrr rrt rru rtc rte rtn rtr rtt rtu rtv ruc rue run rur rut ruu ruv rvc rve rvn rvr rvt rvu rvv tcc tce tcn tcr tct tcu tcv te- tec tee ten ter tet teu tev tnc tne tnn tnr tnt trc tre trn trr trt tru trv ttc tte ttn ttr ttt ttu ttv tuc tue tun tur tut tuu tuv tvc tve tvn tvr tvt tvu ucc uce ucn ucr uct ucu ucv uec uee uen uer uet un- unc une unn unr unt unu unv ur- urc ure urn urr urt uru utc ute utn utr utt utu utv uuc uue uun uur uut uuu uvc uve uvu uvv v-e vcc vce vcn vcr vct vcu vec vee ven ver vet veu vn- vnr vnu vnv vrc vre vrn vrr vrt vru vtc vte vtr vtt vtu vtv vue vur vut vuv vvc vvr vvt vvv