-er c-- ccc cce ccm cco ccr cct ccu ccv ce- cec cee cem ceo cer cet ceu cev cmc cme cmm cmo cmr cmt cmu cmv co- coc coe com coo cor cot cou cov crc cre crm cro crr crt cru crv ctc cte ctm cto ctr ctt ctu ctv cuc cue cum cuo cur cut cuu cuv cvc cve cvm cvo cvr cvt cvu cvv ec- ecc ece ecm eco ecr ect ecu ecv eec eee eem eeo eer eet eev em- emc eme emm emo emr emt emu emv eo- eoc eoe eom eoo eor eot eou erc ere erm ero err ert eru erv etc ete etm eto etr ett etu etv eu- euc eue eur eut euv evc eve evm evo evr evt evv m-o m-r m-v mc- mcc mce mcm mco mcr mct mcu mcv mec mee mem meo mer met meu mev mmc mme mmm mmo mmr mmt mmu mmv moc moe mom moo mor mot mou mov mrc mre mrm mro mrr mrt mru mrv mtc mte mtm mto mtr mtt mtu mtv muc mue mum mur mut muu mvc mve mvm mvo mvr mvt mvv oc- occ ocm oco ocr oct ocu ocv oec oee oem oeo oer oet om- omc ome omm omo omr omt omu omv oo- ooc oom ooo oor oot oov or- orc ore orm oro orr ort oru orv ot- otc ote otm oto otr ott otu otv ou- ouc oue oum ouo our out ov- ovc ove ovo ovv rcc rce rcm rco rcr rct rcu rcv re- rec ree rem reo rer ret reu rev rmc rme rmm rmo rmr rmt rmv roc roe rom roo ror rot rou rov rrc rrm rrr rrt rru rtc rte rtm rto rtr rtt rtu rtv ruc rue rum ruo rur rut ruu ruv rvc rve rvm rvo rvr rvt rvu rvv tcc tce tcm tco tcr tct tcu tcv te- tec tee tem teo ter tet teu tev tmc tme tmm tmo tmr tmt tmu tmv to- toc toe tom too tor tot tou tov trc tre trm tro trr trt tru trv ttc tte ttm tto ttr ttt ttu ttv tuc tue tum tuo tur tut tuu tuv tvc tve tvm tvo tvr tvt tvu ucc uce ucm uco ucr uct ucu ucv uec uee uem uer uet um- umc ume umm umo umr umt umu uoc uoe uom uoo uor uot ur- urc ure urm uro urr urt uru utc ute utm uto utr utt utu utv uuc uue uum uur uut uuu uvc uve uvm uvo uvu uvv v-e vcc vce vcm vco vcr vct vcu vec vee vem veo ver vet veu vm- vmc vmm vmo vmr vmt vmu voc voe vom voo vor vot vou vov vrc vre vrm vrr vrt vru vtc vte vtm vto vtr vtt vtu vtv vue vum vur vut vuv vvc vvm vvo vvr vvt vvv