-er -ic c-- ccc ccd cce ccf ccg cch cci cck cco ccr ccs cdc cdd cde cdf cdg cdh cdi cdk cdo cdr cds ce- cec ced cee cef ceg ceh cei cek ceo cer ces cfc cfd cfe cff cfg cfh cfi cfk cfo cfr cfs cgc cgd cge cgg cgh cgi cgo cgr cgs ch- chc chd che chf chg chh chi chk cho chr chs ci- cic cid cie cif cig cih cii cik cio cir cis ckc ckd ckh cki cko cks co- coc cod coe cof cog coh coi cok coo cor cos crc crd cre crf crg crh cri crk cro crr crs csc csd cse csf csg csh csi csk cso csr css dcc dcd dce dcf dcg dci dck dco dcr dcs ddc ddd dde ddf ddg ddh ddi ddk ddo ddr dds de- dec ded dee def deg deh dei dek deo der des dfc dfd dfe dff dfg dfh dfi dfk dfo dfr dfs dgc dgd dge dgf dgg dgh dgi dgk dgr dgs dh- dhc dhd dhe dhf dhh dhi dhk dho dhr dhs di- dic did die dif dig dih dii dik dio dir dis dkc dke dkg dki dkk dko dkr dks doc dod doe dof dog doh doi dok doo dor dos drc drd dre drg dri drk dro drr drs dsc dsd dse dsf dsg dsh dsi dsk dso dsr dss ec- ecc ecd ece ecf ecg ech eci eck eco ecr ecs ed- edc edd ede edf edg edh edi edk edo edr eds eec eed eee eef eeg eek eeo eer ees ef- efc efd efe eff efg efh efi efo efr efs egc egd ege egf egg egh egi ego egr egs ehc ehd ehe ehf ehg ehh ehi eho ehr ehs eic eid eie eif eig eii eik eio eir eis ekc ekd eke ekf ekg ekh eki eko ekr eks eo- eoc eod eoe eof eog eoh eoi eok eoo eor eos erc erd ere erf erg erh eri erk ero err ers es- esc esd ese esf esg esh esi esk eso esr ess fcc fcd fce fcf fcg fci fck fco fcr fcs fdc fdd fde fdf fdg fdh fdi fdk fdo fdr fds fec fed fee fef feg feh fei fek feo fer fes ffc ffd ffe fff ffg ffh ffi ffk ffo ffr ffs fgc fgd fge fgf fgg fgh fgi fgr fgs fhc fhe fhf fhg fhh fhi fho fhr fhs fic fid fie fif fig fih fii fik fir fis fkc fkf fkg fki fkk foc foe fof fog foh foi fok foo for fos frc frd fre frf frg frh fri frk fro frr frs fsc fsd fse fsf fsg fsh fsi fsk fso fsr fss g-d gcc gcd gce gcf gcg gch gci gck gco gcr gcs gdc gdd gde gdf gdh gdi gdk gdo gdr gds ge- gec ged gee gef geg geh gei gek geo ger ges gfc gfd gfe gff gfh gfi gfk gfo gfr gfs ggc ggd ggg ggh ggi ggo ggr ggs ghc ghd ghe ghg ghh ghi gho ghr ghs gic gid gie gif gig gih gii gik gio gir gis gkd gkh gko gks goc god goe gof gog goh goi gok goo gor gos grc grd gre grf grg grh gri grk gro grr grs gsc gsd gse gsf gsg gsi gsk gso gsr gss h-i hcc hcd hce hcf hcg hch hci hck hco hcr hcs hdc hdd hde hdf hdg hdh hdi hdk hdo hdr hds he- hec hed hee hef heg heh hei hek heo her hes hfc hfd hfe hff hfg hfh hfi hfk hfo hfr hfs hgc hge hgf hgg hgh hgi hgk hgo hgr hgs hhc hhd hhe hhf hhg hhh hhi hhk hho hhr hhs hic hid hie hif hig hih hii hik hio hir his hkd hkf hkg hkh hki hkk hko hkr hks hoc hod hoe hof hog hoh hoi hok hoo hor hos hr- hrc hrd hre hrf hrg hrh hri hrk hro hrr hrs hsc hsd hse hsf hsg hsh hsi hsk hsr hss i-d i-f icc icd ice icf icg ich ici ick ico icr ics idc idd ide idf idg idh idi idk ido idr ids ie- iec ied iee ief ieg iei iek ier ies ifc ifd ife iff ifg ifi ifo ifr ifs igc igd ige igf igg igh igi igk igo igr igs ihc ihd ihe ihf ihg ihh ihi ihk iho ihr ihs iic iid iie iif iih iii iio iir iis ikc ike ikf iki ikk iko ikr iks io- ioc iod ioe iof iog ioh ioi ioo ior ios ir- irc ird ire irf irg iri irk iro irr irs is- isc isd ise isf isg ish isi isk iso isr iss kcc kcd kce kcg kch kci kck kcr kcs kdc kde kdf kdg kdh kdk kdo kdr kds ke- kec ked kee kef keg keh kei kek keo ker kes kfc kfd kff kfg kfh kfi kfo kfs kgc kgd kgf kgh kgi kgo kgs khe khf khh khi khk kho khr khs kic kid kie kif kig kih kii kik kio kir kis kkc kke kkh kki kkk kkr kks koc kod koe kof kog koh koi kok koo kor kos krc krd krf krg kri krk kro krr krs ksc ksd kse ksf ksg ksh ksi ksk kso ksr kss o-i oc- occ ocd ocf ocg och oci ock oco ocr ocs odc odd ode odf odg odh odi odo odr ods oec oed oee oef oeg oeh oei oeo oer oes of- ofc ofd ofe off ofg ofi ofo ofr ofs ogc ogd oge ogf ogg ogh ogi ogo ogs ohc ohd ohe ohf ohg ohh ohi oho ohr ohs oic oid oie oif oii oik oio oir ois okc okd oke okg oki okk oko okr oks oo- ooc ood oof oog ooh ooi ook ooo oor oos