-er c-- c-j ccc cce ccj cck ccm ccr ccs ccu ce- cec cee cej cek cem cer ces ceu cjc cjk cjr cjs ckc ckm cks cmc cme cmj cmk cmm cmr cms cmu crc cre crj crk crm crr crs cru csc cse csj csk csm csr css csu cuc cue cuk cum cur cus cuu ec- ecc ece ecj eck ecm ecr ecs ecu eec eee eek eem eer ees ejc eju ekc eke ekr eks eku em- emc eme emk emm emr ems emu erc ere erk erm err ers eru es- esc ese esk esm esr ess esu eu- euc eue euj eur eus jcc jce jck jcm jcr jcs jcu jec jee jej jek jem jer jes jeu jjc jjj jjk jjr jjs jju jkk jkm jkr jks jku jmc jme jmj jmm jmr jms jmu jrc jrk jrm jrr jrs jsc jse jsj jsk jsm jsr jss jsu jue juk jum jur jus kcc kce kck kcm kcr kcs kcu ke- kec kee kek kem ker kes kjc kje kjr kjs kju kkc kke kkk kkm kkr kks kku kmc kme kmj kmk kmm kms kmu krc krk krr krs kru ksc kse ksk ksm ksr kss ksu kuc kue kuj kuk kum kur kus kuu m-r mc- mcc mce mck mcm mcr mcs mcu mec mee mej mek mem mer mes meu mjc mje mjj mjk mjm mjr mjs mkc mke mkk mkm mkr mks mku mmc mme mmj mmk mmm mmr mms mmu mrc mre mrj mrk mrm mrr mrs mru msc mse msj msk msm msr mss msu muc mue muj muk mum mur mus muu rcc rce rcj rcm rcr rcs rcu re- rec ree rek rem rer res reu rjc rjk rjm rjr rkc rke rkk rkm rks rku rmc rme rmm rmr rms rrc rrk rrm rrr rrs rru rsc rse rsj rsk rsm rsr rss rsu ruc rue ruk rum rur rus ruu scc sce scj sck scm scr scs scu se- sec see sej sek sem ser ses seu sjc sje sjj sjk sjm sjr sjs sju sk- skc ske skj skk skm skr sks sku smc sme smk smm smr sms smu sr- src sre srj srk srm srr srs ss- ssc sse ssj ssk ssm ssr sss ssu suc sue suk sum sur sus suu ucc uce ucj uck ucm ucr ucs ucu uec uee uem uer ues ujc ujs ukc uke ukk ukr uku um- umc ume umm umr ums umu ur- urc ure urk urm urr urs uru usc use usj usk usm usr uss usu uuc uue uum uur uus uuu