-er -ic c-- ccc cce cci ccn ccp ccr ccv ce- cec cee cei cen cep cer cev ci- cic cie cii cin cip cir civ cn- cnc cne cni cnn cnp cnr cnv cpc cpe cpi cpn cpp cpr cpv crc cre cri crn crp crr crv cvc cve cvi cvn cvp cvr cvv ec- ecc ece eci ecn ecr ecv eec eee een eep eer eev eic eie eii ein eip eir eiv en- enc ene eni enn enp enr env ep- epc epe epi epn epp epr erc ere eri ern erp err erv evc eve evi evn evp evr evv i-v icc ice ici icn icp icr icv ie- iec iee iei ien iep ier iev iic iie iii iin iip iir in- inc ine ini inn inp inr inv ipc ipe ipi ipn ipp ipr ipv ir- irc ire iri irn irp irr irv ivc ive ivi ivp ivr ivv n-i ncc nce nci ncn ncp ncr ncv ne- nec nee nei nen nep ner nev nic nie nii nin nip nir niv nnc nne nni nnn nnp nnv npc npe npi npn npp npr npv nrc nre nri nrn nrp nrr nrv nvc nve nvi nvn nvp nvv p-p pcc pce pci pcn pcp pcr pcv pec pee pei pen pep per pev pic pie pii pin pip pir piv pn- pnc pne pni pnn pnp pnr pnv ppc ppe ppi ppn ppp ppr ppv prc pre pri prn prp prr prv pvc pve pvi pvn pvp pvr pvv rcc rce rci rcn rcp rcr rcv re- rec ree rei ren rep rer rev ric rie rii rin rip rir riv rnc rni rnn rnp rnr rnv rpc rpe rpi rpn rpp rpr rpv rrc rri rrn rrp rrr rvc rve rvi rvn rvp rvr rvv v-e vcc vce vci vcn vcp vcr vec vee vei ven vep ver vi- vic vie vii vin vip vir viv vn- vni vnp vnr vnv vpc vpe vpi vpn vpp vpr vrc vre vri vrn vrp vrr vvc vvi vvr vvv