-er -ic -ol c-- ccc ccd cce ccf cci ccl cco ccr cdc cdd cde cdf cdi cdl cdo cdr ce- cec ced cee cef cei cel ceo cer cfc cfd cfe cff cfi cfl cfo cfr ci- cic cid cie cif cii cil cio cir cl- clc cld cle clf cli cll clo clr co- coc cod coe cof coi col coo cor crc crd cre crf cri crl cro crr dcc dcd dce dcf dci dcl dco dcr ddc ddd dde ddf ddi ddl ddo ddr de- dec ded dee def dei del deo der dfc dfd dfe dff dfi dfl dfo dfr di- dic did die dif dii dil dio dir dl- dlc dld dle dlf dli dll dlo dlr doc dod doe dof doi dol doo dor drc drd dre dri drl dro drr ec- ecc ecd ece ecf eci ecl eco ecr ed- edc edd ede edf edi edl edo edr eec eed eee eef eel eeo eer ef- efc efd efe eff efi efl efo efr eic eid eie eif eii eil eio eir elc eld ele elf eli ell elo elr eo- eoc eod eoe eof eoi eol eoo eor erc erd ere erf eri erl ero err fcc fcd fce fcf fci fcl fco fcr fdc fdd fde fdf fdi fdl fdo fdr fec fed fee fef fei fel feo fer ffc ffd ffe fff ffi ffl ffo ffr fic fid fie fif fii fil fir flc fld fle flf fli fll flo flr foc foe fof foi fol foo for frc frd fre frf fri frl fro frr i-d i-f icc icd ice icf ici icl ico icr idc idd ide idf idi idl ido idr ie- iec ied iee ief iei iel ier ifc ifd ife iff ifi ifl ifo ifr iic iid iie iif iii iil iio iir il- ilc ild ile ilf ili ill ilo ilr io- ioc iod ioe iof ioi iol ioo ior ir- irc ird ire irf iri irl iro irr lcc lcd lce lcf lci lcl lco lcr ldc ldd lde ldf ldi ldl ldo ldr lec led lee lef lei lel leo ler lfc lfd lfe lff lfi lfl lfo lfr lic lid lie lif lii lil lio lir llc lld lle llf lli lll llo llr loc lod loe lof loi lol loo lor lrc lrd lrf lri lro lrr o-i oc- occ ocd ocf oci ocl oco ocr odc odd ode odf odi odl odo odr oec oed oee oef oei oel oeo oer of- ofc ofd ofe off ofi ofl ofo ofr oic oid oie oif oii oil oio oir olc old ole olf oli oll olo oo- ooc ood oof ooi ool ooo oor or- orc ord ore orf ori orl oro orr rcc rcd rce rcf rci rcl rco rcr rdc rdd rde rdf rdi rdl rdo rdr re- rec red ree ref rei rel reo rer rfc rfd rfe rff rfi rfl rfo rfr ric rid rie rif rii ril rio rir rlc rld rle rlf rli rll rlo rlr roc rod roe rof roi rol roo ror rrc rrd rrf rri rrl rrr