-er -ic c-- ccc cce cci cco ccp ccr cct ccv ce- cec cee cei ceo cep cer cet cev ci- cic cie cii cio cip cir cit civ co- coc coe coi coo cop cor cot cov cpc cpe cpi cpo cpp cpr cpt cpv crc cre cri cro crp crr crt crv ctc cte cti cto ctp ctr ctt ctv cvc cve cvi cvo cvp cvr cvt cvv ec- ecc ece eci eco ecr ect ecv eec eee eeo eep eer eet eev eic eie eii eio eip eir eit eiv eo- eoc eoe eoi eoo eop eor eot ep- epc epe epi epo epp epr ept erc ere eri ero erp err ert erv etc ete eti eto etp etr ett etv evc eve evi evo evp evr evt evv i-v icc ice ici ico icp icr ict icv ie- iec iee iei iep ier iet iev iic iie iii iio iip iir iit io- ioc ioe ioi ioo iop ior iot iov ipc ipe ipi ipo ipp ipr ipt ipv ir- irc ire iri iro irp irr irt irv itc ite iti ito itp itt itv ivc ive ivi ivo ivp ivr ivt ivv o-i oc- occ oci oco ocp ocr oct ocv oec oee oei oeo oep oer oet oic oie oii oio oip oir oit oiv oo- ooc ooi ooo oop oor oot oov op- opc ope opi opo opp opr opt opv or- orc ore ori oro orp orr ort orv ot- otc ote oti oto otp otr ott otv ov- ovc ove ovi ovo ovp ovv p-p pcc pce pci pco pcp pcr pct pcv pec pee pei peo pep per pet pev pic pie pii pio pip pir pit piv poc poe poi poo pop por pot pov ppc ppe ppi ppo ppp ppr ppt ppv prc pre pri pro prp prr prt prv pt- ptc pte pti pto ptp ptr ptt ptv pvc pve pvi pvo pvp pvr pvt pvv rcc rce rci rco rcp rcr rct rcv re- rec ree rei reo rep rer ret rev ric rie rii rio rip rir rit riv roc roe roi roo rop ror rot rov rpc rpe rpi rpo rpp rpr rpt rpv rrc rri rrp rrr rrt rtc rte rti rto rtp rtr rtt rtv rvc rve rvi rvo rvp rvr rvt rvv tcc tce tci tco tcp tcr tct tcv te- tec tee tei teo tep ter tet tev tic tie tii tio tip tir tit tiv to- toc toe toi too top tor tot tov tpc tpe tpi tpo tpp tpr tpt tpv trc tre tri tro trp trr trt trv ttc tte tti tto ttp ttr ttt ttv tvc tve tvi tvo tvp tvr tvt v-e vcc vce vci vco vcp vcr vct vec vee vei veo vep ver vet vi- vic vie vii vio vip vir vit viv voc voe voi voo vop vor vot vov vpc vpe vpi vpo vpp vpr vpt vrc vre vri vrp vrr vrt vtc vte vti vto vtr vtt vtv vvc vvi vvo vvr vvt vvv