-er -ic -up c-- ccc cce cci cco ccp ccr ccu ce- cec cee cei ceo cep ceq cer ceu ci- cic cie cii cio cip ciq cir ciu co- coc coe coi coo cop coq cor cou cpc cpe cpi cpo cpp cpq cpr cpu cqc cqi cqo crc cre cri cro crp crq crr cru cuc cue cui cuo cup cuq cur cuu ec- ecc ece eci eco ecq ecr ecu eec eee eeo eep eer eic eie eii eio eip eir eiu eo- eoc eoe eoi eoo eop eoq eor eou ep- epc epe epi epo epp epq epr epu eqe eqp eqq equ erc ere eri ero erp erq err eru eu- euc eue eui eup eur icc ice ici ico icp icq icr icu ie- iec iee iei iep ier iic iie iii iio iip iir iiu io- ioc ioe ioi ioo iop ior iou ipc ipe ipi ipo ipp ipr ipu iqc iqe iqu ir- irc ire iri iro irp irq irr iru iu- iuc iue iui iup iur o-i oc- occ oci oco ocp ocr ocu oec oee oei oeo oep oer oic oie oii oio oip oir oiu oo- ooc ooi ooo oop oor op- opc ope opi opo opp opq opr oqo or- orc ore ori oro orp orr oru ou- ouc oue oui ouo oup our p-p pcc pce pci pco pcp pcq pcr pcu pec pee pei peo pep per peu pic pie pii pio pip piq pir piu poc poe poi poo pop por pou ppc ppe ppi ppo ppp ppq ppr ppu pqi pqq pqr prc pre pri pro prp prq prr pru puc pue pui pup pur puu qcc qci qco qcp qec qee qeo qep qic qie qio qip qir qiu qoi qoo qop qor qpc qpp qpr qqq qqu qrc qre qri qrp qru qu- que qui quo qur rcc rce rci rco rcp rcr rcu re- rec ree rei reo rep req rer reu ric rie rii rio rip riq rir roc roe roi roo rop ror rou rpc rpe rpi rpo rpp rpr rpu rqc rrc rri rrp rrq rrr rru ruc rue rui ruo rup rur ruu ucc uce uci uco ucp ucr ucu uec uee uei uep uer uic uie uii uio uip uiq uir uiu uoc uoe uoo uop uor up- upc upe upi upo upp upr upu ur- urc ure uri uro urp urr uru uuc uue uur uuu