-er -ic c-- ccc cce ccf cci cco ccr ccv ccz ce- cec cee cef cei ceo cer cev cez cfc cfe cff cfi cfo cfr cfv cfz ci- cic cie cif cii cio cir civ co- coc coe cof coi coo cor cov coz crc cre crf cri cro crr crv crz cvc cve cvf cvi cvo cvr cvv cvz cz- czc cze czo ec- ecc ece ecf eci eco ecr ecv eec eee eef eeo eer eev ef- efc efe eff efi efo efr eic eie eif eii eio eir eiv eo- eoc eoe eof eoi eoo eor erc ere erf eri ero err erv erz evc eve evf evi evo evr evv eze ezf ezo ezr ezz fcc fce fcf fci fco fcr fcv fcz fec fee fef fei feo fer fev fez ffc ffe fff ffi ffo ffr ffv ffz fic fie fif fii fir fiz foc foe fof foi foo for foz frc fre frf fri fro frr fvc i-f i-v icc ice icf ici ico icr icv icz ie- iec iee ief iei ier iev ifc ife iff ifi ifo ifr ifz iic iie iif iii iio iir io- ioc ioe iof ioi ioo ior iov ir- irc ire irf iri iro irr irv ivc ive ivf ivi ivo ivr ivv ize izi izo izz o-i oc- occ ocf oci oco ocr ocv ocz oec oee oef oei oeo oer of- ofc ofe off ofi ofo ofr ofv ofz oic oie oif oii oio oir oiv oiz oo- ooc oof ooi ooo oor oov or- orc ore orf ori oro orr orv orz ov- ovc ove ovf ovi ovo ovv oze ozo ozz rcc rce rcf rci rco rcr rcv re- rec ree ref rei reo rer rev rez rfc rfe rff rfi rfo rfr rfv rfz ric rie rif rii rio rir riv riz roc roe rof roi roo ror rov roz rrc rrf rri rrr rvc rve rvf rvi rvo rvr rvv rze rzo v-e vcc vce vcf vci vco vcr vec vee vef vei veo ver vez vfc vff vfi vfr vfv vi- vic vie vif vii vio vir viv viz voc voe vof voi voo vor vov voz vrc vre vrf vri vrr vvc vvi vvo vvr vvv vvz zce zco zec zee zef zeo zer zev zez zfc zfr zie zif zio zir ziv ziz zo- zoc zoe zof zoi zoo zor zro zvi zzr zzz