-er -ic c-- ccc ccd cce ccf cch cci cco ccr ccs cdc cdd cde cdf cdh cdi cdo cdr cds ce- cec ced cee cef ceh cei ceo cer ces cfc cfd cfe cff cfh cfi cfo cfr cfs ch- chc chd che chf chh chi cho chr chs ci- cic cid cie cif cih cii cio cir cis co- coc cod coe cof coh coi coo cor cos crc crd cre crf crh cri cro crr crs csc csd cse csf csh csi cso csr css dcc dcd dce dcf dci dco dcr dcs ddc ddd dde ddf ddh ddi ddo ddr dds de- dec ded dee def deh dei deo der des dfc dfd dfe dff dfh dfi dfo dfr dfs dh- dhc dhd dhe dhf dhh dhi dho dhr dhs di- dic did die dif dih dii dio dir dis doc dod doe dof doh doi doo dor dos drc drd dre dri dro drr drs dsc dsd dse dsf dsh dsi dso dsr dss ec- ecc ecd ece ecf ech eci eco ecr ecs ed- edc edd ede edf edh edi edo edr eds eec eed eee eef eeo eer ees ef- efc efd efe eff efh efi efo efr efs ehc ehd ehe ehf ehh ehi eho ehr ehs eic eid eie eif eii eio eir eis eo- eoc eod eoe eof eoh eoi eoo eor eos erc erd ere erf erh eri ero err ers es- esc esd ese esf esh esi eso esr ess fcc fcd fce fcf fci fco fcr fcs fdc fdd fde fdf fdh fdi fdo fdr fds fec fed fee fef feh fei feo fer fes ffc ffd ffe fff ffh ffi ffo ffr ffs fhc fhe fhf fhh fhi fho fhr fhs fic fid fie fif fih fii fir fis foc foe fof foh foi foo for fos frc frd fre frf frh fri fro frr frs fsc fsd fse fsf fsh fsi fso fsr fss h-i hcc hcd hce hcf hch hci hco hcr hcs hdc hdd hde hdf hdh hdi hdo hdr hds he- hec hed hee hef heh hei heo her hes hfc hfd hfe hff hfh hfi hfo hfr hfs hhc hhd hhe hhf hhh hhi hho hhr hhs hic hid hie hif hih hii hio hir his hoc hod hoe hof hoh hoi hoo hor hos hr- hrc hrd hre hrf hrh hri hro hrr hrs hsc hsd hse hsf hsh hsi hsr hss i-d i-f icc icd ice icf ich ici ico icr ics idc idd ide idf idh idi ido idr ids ie- iec ied iee ief iei ier ies ifc ifd ife iff ifi ifo ifr ifs ihc ihd ihe ihf ihh ihi iho ihr ihs iic iid iie iif iih iii iio iir iis io- ioc iod ioe iof ioh ioi ioo ior ios ir- irc ird ire irf iri iro irr irs is- isc isd ise isf ish isi iso isr iss o-i oc- occ ocd ocf och oci oco ocr ocs odc odd ode odf odh odi odo odr ods oec oed oee oef oeh oei oeo oer oes of- ofc ofd ofe off ofi ofo ofr ofs ohc ohd ohe ohf ohh ohi oho ohr ohs oic oid oie oif oii oio oir ois oo- ooc ood oof ooh ooi ooo oor oos or- orc ord ore orf orh ori oro orr ors os- osc osd ose osf osh osi oso osr oss rcc rcd rce rcf rch rci rco rcr rcs rdc rdd rde rdf rdh rdi rdo rdr rds re- rec red ree ref reh rei reo rer res rfc rfd rfe rff rfh rfi rfo rfr rfs rh- rhc rhd rhe rhf rhh rhi rho rhr rhs ric rid rie rif rih rii rio rir ris roc rod roe rof roh roi roo ror ros rrc rrd rrf rrh rri rrr rrs rsc rsd rse rsf rsh rsi rso rsr rss scc scd sce scf sch sci sco scr scs sdc sdd sde sdf sdh sdi sdo sdr sds se- sec sed see sef seh sei seo ser ses sfc sfd sfe sff sfh sfi sfo sfr sfs sh- shc shd she shf shh shi sho shr shs sic sid sie sif sih sii sio sir sis soc sod soe sof soh soi soo sor sos sr- src srd sre srf srh sri sro srr srs ss- ssc ssd sse ssf ssh ssi sso ssr sss