-er -ic c-- ccc cce cci ccm cco ccr ccv ce- cec cee cei cem ceo cer cev ci- cic cie cii cim cio cir civ cmc cme cmi cmm cmo cmr cmv co- coc coe coi com coo cor cov crc cre cri crm cro crr crv cvc cve cvi cvm cvo cvr cvv ec- ecc ece eci ecm eco ecr ecv eec eee eem eeo eer eev eic eie eii eim eio eir eiv em- emc eme emi emm emo emr emv eo- eoc eoe eoi eom eoo eor erc ere eri erm ero err erv evc eve evi evm evo evr evv i-v icc ice ici icm ico icr icv ie- iec iee iei iem ier iev iic iie iii iim iio iir im- imc ime imi imm imo imv io- ioc ioe ioi iom ioo ior iov ir- irc ire iri irm iro irr irv ivc ive ivi ivo ivr ivv m-o m-r m-v mc- mcc mce mci mcm mco mcr mcv mec mee mei mem meo mer mev mi- mic mie mii mim mio mir miv mmc mme mmi mmm mmo mmr mmv moc moe moi mom moo mor mov mrc mre mri mrm mro mrr mrv mvc mve mvi mvm mvo mvr mvv o-i oc- occ oci ocm oco ocr ocv oec oee oei oem oeo oer oic oie oii oim oio oir oiv om- omc ome omi omm omo omr omv oo- ooc ooi oom ooo oor oov or- orc ore ori orm oro orr orv ov- ovc ove ovi ovo ovv rcc rce rci rcm rco rcr rcv re- rec ree rei rem reo rer rev ric rie rii rim rio rir riv rmc rme rmi rmm rmo rmr rmv roc roe roi rom roo ror rov rrc rri rrm rrr rvc rve rvi rvm rvo rvr rvv v-e vcc vce vci vcm vco vcr vec vee vei vem veo ver vi- vic vie vii vim vio vir viv vm- vmc vmi vmm vmo vmr voc voe voi vom voo vor vov vrc vre vri vrm vrr vvc vvi vvm vvo vvr vvv