-er -ic c-- ccc ccd cce ccf cch cci ccr ccs cdc cdd cde cdf cdh cdi cdr cds ce- cec ced cee cef ceh cei cer ces cfc cfd cfe cff cfh cfi cfr cfs ch- chc chd che chf chh chi chr chs ci- cic cid cie cif cih cii cir cis crc crd cre crf crh cri crr crs csc csd cse csf csh csi csr css dcc dcd dce dcf dci dcr dcs ddc ddd dde ddf ddh ddi ddr dds de- dec ded dee def deh dei der des dfc dfd dfe dff dfh dfi dfr dfs dh- dhc dhd dhe dhf dhh dhi dhr dhs di- dic did die dif dih dii dir dis drc drd dre dri drr drs dsc dsd dse dsf dsh dsi dsr dss ec- ecc ecd ece ecf ech eci ecr ecs ed- edc edd ede edf edh edi edr eds eec eed eee eef eer ees ef- efc efd efe eff efh efi efr efs ehc ehd ehe ehf ehh ehi ehr ehs eic eid eie eif eii eir eis erc erd ere erf erh eri err ers es- esc esd ese esf esh esi esr ess fcc fcd fce fcf fci fcr fcs fdc fdd fde fdf fdh fdi fdr fds fec fed fee fef feh fei fer fes ffc ffd ffe fff ffh ffi ffr ffs fhc fhe fhf fhh fhi fhr fhs fic fid fie fif fih fii fir fis frc frd fre frf frh fri frr frs fsc fsd fse fsf fsh fsi fsr fss h-i hcc hcd hce hcf hch hci hcr hcs hdc hdd hde hdf hdh hdi hdr hds he- hec hed hee hef heh hei her hes hfc hfd hfe hff hfh hfi hfr hfs hhc hhd hhe hhf hhh hhi hhr hhs hic hid hie hif hih hii hir his hr- hrc hrd hre hrf hrh hri hrr hrs hsc hsd hse hsf hsh hsi hsr hss i-d i-f icc icd ice icf ich ici icr ics idc idd ide idf idh idi idr ids ie- iec ied iee ief iei ier ies ifc ifd ife iff ifi ifr ifs ihc ihd ihe ihf ihh ihi ihr ihs iic iid iie iif iih iii iir iis ir- irc ird ire irf iri irr irs is- isc isd ise isf ish isi isr iss rcc rcd rce rcf rch rci rcr rcs rdc rdd rde rdf rdh rdi rdr rds re- rec red ree ref reh rei rer res rfc rfd rfe rff rfh rfi rfr rfs rh- rhc rhd rhe rhf rhh rhi rhr rhs ric rid rie rif rih rii rir ris rrc rrd rrf rrh rri rrr rrs rsc rsd rse rsf rsh rsi rsr rss scc scd sce scf sch sci scr scs sdc sdd sde sdf sdh sdi sdr sds se- sec sed see sef seh sei ser ses sfc sfd sfe sff sfh sfi sfr sfs sh- shc shd she shf shh shi shr shs sic sid sie sif sih sii sir sis sr- src srd sre srf srh sri srr srs ss- ssc ssd sse ssf ssh ssi ssr sss