-er -up c-- ccc cce cck ccn ccp ccr ccs ccu ce- cec cee cek cen cep cer ces ceu ckc cks cn- cnc cne cnn cnp cnr cns cnu cpc cpe cpk cpn cpp cpr cps cpu crc cre crk crn crp crr crs cru csc cse csk csn csp csr css csu cuc cue cuk cun cup cur cus cuu ec- ecc ece eck ecn ecr ecs ecu eec eee eek een eep eer ees ekc eke ekp ekr eks eku en- enc ene enk enn enp enr ens enu ep- epc epe epn epp epr eps epu erc ere erk ern erp err ers eru es- esc ese esk esn esp esr ess esu eu- euc eue eun eup eur eus kcc kce kck kcn kcp kcr kcs kcu ke- kec kee kek ken kep ker kes kkc kke kkk kkn kkp kkr kks kku kn- knc kne knk knn knp knr knu kpc kpe kpk kpn kpp kpr kps kpu krc krk krn krp krr krs kru ksc kse ksk ksn ksp ksr kss ksu kuc kue kuk kun kup kur kus kuu ncc nce nck ncn ncp ncr ncs ncu ne- nec nee nek nen nep ner nes neu nkc nke nkk nkn nkp nkr nks nku nnc nne nnk nnn nnp nns nnu npc npe npn npp npr nps npu nrc nre nrk nrn nrp nrr nrs nru nsc nse nsk nsn nsp nsr nss nsu nuc nue nuk nun nup nur nus nuu p-p pcc pce pck pcn pcp pcr pcs pcu pec pee pek pen pep per pes peu pkc pke pkn pkp pkr pks pku pn- pnc pne pnk pnn pnp pnr pns pnu ppc ppe ppk ppn ppp ppr pps ppu prc pre prk prn prp prr prs pru ps- psc pse psk psn psp psr pss psu puc pue puk pun pup pur pus puu rcc rce rcn rcp rcr rcs rcu re- rec ree rek ren rep rer res reu rkc rke rkk rkp rks rku rnc rnn rnp rnr rns rnu rpc rpe rpk rpn rpp rpr rps rpu rrc rrk rrn rrp rrr rrs rru rsc rse rsk rsn rsp rsr rss rsu ruc rue ruk run rup rur rus ruu scc sce sck scn scp scr scs scu se- sec see sek sen sep ser ses seu sk- skc ske skk skp skr sks sku snc sne snk snn snp snr sns snu spc spe spk spn spp spr sps spu sr- src sre srk srn srp srr srs ss- ssc sse ssk ssn ssp ssr sss ssu suc sue suk sun sup sur sus suu ucc uce uck ucn ucp ucr ucs ucu uec uee uen uep uer ues ukc uke ukk ukn ukp ukr uku un- unc une unk unn unp unr uns unu up- upc upe upk upn upp upr ups upu ur- urc ure urk urn urp urr urs uru usc use usk usn usp usr uss usu uuc uue uun uur uus uuu