-er -ic -up c-- ccc cce cci cco ccp ccr ccs ccu ce- cec cee cei ceo cep cer ces ceu ci- cic cie cii cio cip cir cis ciu co- coc coe coi coo cop cor cos cou cpc cpe cpi cpo cpp cpr cps cpu crc cre cri cro crp crr crs cru csc cse csi cso csp csr css csu cuc cue cui cuo cup cur cus cuu ec- ecc ece eci eco ecr ecs ecu eec eee eeo eep eer ees eic eie eii eio eip eir eis eiu eo- eoc eoe eoi eoo eop eor eos eou ep- epc epe epi epo epp epr eps epu erc ere eri ero erp err ers eru es- esc ese esi eso esp esr ess esu eu- euc eue eui eup eur eus icc ice ici ico icp icr ics icu ie- iec iee iei iep ier ies iic iie iii iio iip iir iis iiu io- ioc ioe ioi ioo iop ior ios iou ipc ipe ipi ipo ipp ipr ips ipu ir- irc ire iri iro irp irr irs iru is- isc ise isi iso isp isr iss isu iu- iuc iue iui iup iur ius o-i oc- occ oci oco ocp ocr ocs ocu oec oee oei oeo oep oer oes oic oie oii oio oip oir ois oiu oo- ooc ooi ooo oop oor oos op- opc ope opi opo opp opr ops or- orc ore ori oro orp orr ors oru os- osc ose osi oso osp osr oss osu ou- ouc oue oui ouo oup our ous p-p pcc pce pci pco pcp pcr pcs pcu pec pee pei peo pep per pes peu pic pie pii pio pip pir pis piu poc poe poi poo pop por pos pou ppc ppe ppi ppo ppp ppr pps ppu prc pre pri pro prp prr prs pru ps- psc pse psi pso psp psr pss psu puc pue pui pup pur pus puu rcc rce rci rco rcp rcr rcs rcu re- rec ree rei reo rep rer res reu ric rie rii rio rip rir ris roc roe roi roo rop ror ros rou rpc rpe rpi rpo rpp rpr rps rpu rrc rri rrp rrr rrs rru rsc rse rsi rso rsp rsr rss rsu ruc rue rui ruo rup rur rus ruu scc sce sci sco scp scr scs scu se- sec see sei seo sep ser ses seu sic sie sii sio sip sir sis siu soc soe soi soo sop sor sos sou spc spe spi spo spp spr sps spu sr- src sre sri sro srp srr srs ss- ssc sse ssi sso ssp ssr sss ssu suc sue sui suo sup sur sus suu ucc uce uci uco ucp ucr ucs ucu uec uee uei uep uer ues uic uie uii uio uip uir uis uiu uoc uoe uoo uop uor uos up- upc upe upi upo upp upr ups upu ur- urc ure uri uro urp urr urs uru usc use usi uso usp usr uss usu uuc uue uur uus uuu