-er -ic c-- ccc cce cci ccn cco ccr ccv ce- cec cee cei cen ceo cer cev ci- cic cie cii cin cio cir civ cn- cnc cne cni cnn cno cnr cnv co- coc coe coi con coo cor cov crc cre cri crn cro crr crv cvc cve cvi cvn cvo cvr cvv ec- ecc ece eci ecn eco ecr ecv eec eee een eeo eer eev eic eie eii ein eio eir eiv en- enc ene eni enn eno enr env eo- eoc eoe eoi eon eoo eor erc ere eri ern ero err erv evc eve evi evn evo evr evv i-v icc ice ici icn ico icr icv ie- iec iee iei ien ier iev iic iie iii iin iio iir in- inc ine ini inn ino inr inv io- ioc ioe ioi ion ioo ior iov ir- irc ire iri irn iro irr irv ivc ive ivi ivo ivr ivv n-i ncc nce nci ncn nco ncr ncv ne- nec nee nei nen neo ner nev nic nie nii nin nio nir niv nnc nne nni nnn nno nnv no- noc noe noi non noo nor nov nrc nre nri nrn nro nrr nrv nvc nve nvi nvn nvv o-i oc- occ oci ocn oco ocr ocv oec oee oei oen oeo oer oic oie oii oin oio oir oiv on- onc one oni onn ono onr oo- ooc ooi oon ooo oor oov or- orc ore ori orn oro orr orv ov- ovc ove ovi ovo ovv rcc rce rci rcn rco rcr rcv re- rec ree rei ren reo rer rev ric rie rii rin rio rir riv rnc rni rnn rno rnr rnv roc roe roi ron roo ror rov rrc rri rrn rrr rvc rve rvi rvn rvo rvr rvv v-e vcc vce vci vcn vco vcr vec vee vei ven veo ver vi- vic vie vii vin vio vir viv vn- vni vno vnr vnv voc voe voi von voo vor vov vrc vre vri vrn vrr vvc vvi vvo vvr vvv