-er -ic -ol c-- ccc ccd cce ccf cci ccl cco ccr ccs cdc cdd cde cdf cdi cdl cdo cdr cds ce- cec ced cee cef cei cel ceo cer ces cfc cfd cfe cff cfi cfl cfo cfr cfs ci- cic cid cie cif cii cil cio cir cis cl- clc cld cle clf cli cll clo clr cls co- coc cod coe cof coi col coo cor cos crc crd cre crf cri crl cro crr crs csc csd cse csf csi csl cso csr css dcc dcd dce dcf dci dcl dco dcr dcs ddc ddd dde ddf ddi ddl ddo ddr dds de- dec ded dee def dei del deo der des dfc dfd dfe dff dfi dfl dfo dfr dfs di- dic did die dif dii dil dio dir dis dl- dlc dld dle dlf dli dll dlo dlr dls doc dod doe dof doi dol doo dor dos drc drd dre dri drl dro drr drs dsc dsd dse dsf dsi dsl dso dsr dss ec- ecc ecd ece ecf eci ecl eco ecr ecs ed- edc edd ede edf edi edl edo edr eds eec eed eee eef eel eeo eer ees ef- efc efd efe eff efi efl efo efr efs eic eid eie eif eii eil eio eir eis elc eld ele elf eli ell elo elr els eo- eoc eod eoe eof eoi eol eoo eor eos erc erd ere erf eri erl ero err ers es- esc esd ese esf esi esl eso esr ess fcc fcd fce fcf fci fcl fco fcr fcs fdc fdd fde fdf fdi fdl fdo fdr fds fec fed fee fef fei fel feo fer fes ffc ffd ffe fff ffi ffl ffo ffr ffs fic fid fie fif fii fil fir fis flc fld fle flf fli fll flo flr fls foc foe fof foi fol foo for fos frc frd fre frf fri frl fro frr frs fsc fsd fse fsf fsi fsl fso fsr fss i-d i-f icc icd ice icf ici icl ico icr ics idc idd ide idf idi idl ido idr ids ie- iec ied iee ief iei iel ier ies ifc ifd ife iff ifi ifl ifo ifr ifs iic iid iie iif iii iil iio iir iis il- ilc ild ile ilf ili ill ilo ilr ils io- ioc iod ioe iof ioi iol ioo ior ios ir- irc ird ire irf iri irl iro irr irs is- isc isd ise isf isi isl iso isr iss lcc lcd lce lcf lci lcl lco lcr lcs ldc ldd lde ldf ldi ldl ldo ldr lds lec led lee lef lei lel leo ler les lfc lfd lfe lff lfi lfl lfo lfr lfs lic lid lie lif lii lil lio lir lis llc lld lle llf lli lll llo llr lls loc lod loe lof loi lol loo lor los lrc lrd lrf lri lro lrr lrs lsc lsd lse lsf lsi lsl lso lsr lss o-i oc- occ ocd ocf oci ocl oco ocr ocs odc odd ode odf odi odl odo odr ods oec oed oee oef oei oel oeo oer oes of- ofc ofd ofe off ofi ofl ofo ofr ofs oic oid oie oif oii oil oio oir ois olc old ole olf oli oll olo ols oo- ooc ood oof ooi ool ooo oor oos or- orc ord ore orf ori orl oro orr ors os- osc osd ose osf osi osl oso osr oss rcc rcd rce rcf rci rcl rco rcr rcs rdc rdd rde rdf rdi rdl rdo rdr rds re- rec red ree ref rei rel reo rer res rfc rfd rfe rff rfi rfl rfo rfr rfs ric rid rie rif rii ril rio rir ris rlc rld rle rlf rli rll rlo rlr rls roc rod roe rof roi rol roo ror ros rrc rrd rrf rri rrl rrr rrs rsc rsd rse rsf rsi rsl rso rsr rss scc scd sce scf sci scl sco scr scs sdc sdd sde sdf sdi sdl sdo sdr sds se- sec sed see sef sei sel seo ser ses sfc sfd sfe sff sfi sfl sfo sfr sfs sic sid sie sif sii sil sio sir sis slc sld sle slf sli sll slo slr sls soc sod soe sof soi sol soo sor sos sr- src srd sre srf sri srl sro srr srs ss- ssc ssd sse ssf ssi ssl sso ssr sss