-er c-- ccc cce ccm ccn cco ccr ccu ce- cec cee cem cen ceo cer ceu cmc cme cmm cmn cmo cmr cmu cn- cnc cne cnm cnn cno cnr cnu co- coc coe com con coo cor cou crc cre crm crn cro crr cru cuc cue cum cun cuo cur cuu ec- ecc ece ecm ecn eco ecr ecu eec eee eem een eeo eer em- emc eme emm emn emo emr emu en- enc ene enm enn eno enr enu eo- eoc eoe eom eon eoo eor eou erc ere erm ern ero err eru eu- euc eue eun eur m-o m-r mc- mcc mce mcm mcn mco mcr mcu mec mee mem men meo mer meu mmc mme mmm mmn mmo mmr mmu mnc mne mnm mnn mno mnr mnu moc moe mom mon moo mor mou mrc mre mrm mrn mro mrr mru muc mue mum mun mur muu ncc nce ncm ncn nco ncr ncu ne- nec nee nem nen neo ner neu nmc nme nmm nmn nmo nmr nmu nnc nne nnm nnn nno nnu no- noc noe nom non noo nor nou nrc nre nrm nrn nro nrr nru nuc nue num nun nuo nur nuu oc- occ ocm ocn oco ocr ocu oec oee oem oen oeo oer om- omc ome omm omn omo omr omu on- onc one onn ono onr onu oo- ooc oom oon ooo oor or- orc ore orm orn oro orr oru ou- ouc oue oum oun ouo our rcc rce rcm rcn rco rcr rcu re- rec ree rem ren reo rer reu rmc rme rmm rmn rmo rmr rnc rnm rnn rno rnr rnu roc roe rom ron roo ror rou rrc rrm rrn rrr rru ruc rue rum run ruo rur ruu ucc uce ucm ucn uco ucr ucu uec uee uem uen uer um- umc ume umm umn umo umr umu un- unc une unm unn uno unr unu uoc uoe uom uon uoo uor ur- urc ure urm urn uro urr uru uuc uue uum uun uur uuu