-er -ic a-a a-c a-i aaa aac aad aae aaf aai aar aas ac- aca acc acd ace acf aci acr acs ad- ada adc add ade adf adi adr ads aea aec aed aee aef aei aer aes af- afa afc afd afe aff afi afr afs ai- aia aic aid aie aif aii air ais ar- ara arc ard are arf ari arr ars as- asa asc asd ase asf asi asr ass c-- caa cac cad cae caf cai car cas cca ccc ccd cce ccf cci ccr ccs cda cdc cdd cde cdf cdi cdr cds ce- cea cec ced cee cef cei cer ces cfa cfc cfd cfe cff cfi cfr cfs ci- cia cic cid cie cif cii cir cis cra crc crd cre crf cri crr crs csa csc csd cse csf csi csr css daa dac dad dae daf dai dar das dca dcc dcd dce dcf dci dcr dcs dda ddc ddd dde ddf ddi ddr dds de- dea dec ded dee def dei der des dfa dfc dfd dfe dff dfi dfr dfs di- dia dic did die dif dii dir dis dra drc drd dre dri drr drs dsa dsc dsd dse dsf dsi dsr dss eaa eac ead eae eaf eai ear eas ec- eca ecc ecd ece ecf eci ecr ecs ed- eda edc edd ede edf edi edr eds eea eec eed eee eef eer ees ef- efa efc efd efe eff efi efr efs eia eic eid eie eif eii eir eis era erc erd ere erf eri err ers es- esa esc esd ese esf esi esr ess faa fac fad fae faf fai far fas fca fcc fcd fce fcf fci fcr fcs fda fdc fdd fde fdf fdi fdr fds fea fec fed fee fef fei fer fes ffa ffc ffd ffe fff ffi ffr ffs fia fic fid fie fif fii fir fis fra frc frd fre frf fri frr frs fsa fsc fsd fse fsf fsi fsr fss i-d i-f ia- iaa iac iad iae iaf iai iar ias ica icc icd ice icf ici icr ics ida idc idd ide idf idi idr ids ie- iea iec ied iee ief iei ier ies ifa ifc ifd ife iff ifi ifr ifs iia iic iid iie iif iii iir iis ir- ira irc ird ire irf iri irr irs is- isa isc isd ise isf isi isr iss ra- raa rac rad rae raf rai rar ras rca rcc rcd rce rcf rci rcr rcs rda rdc rdd rde rdf rdi rdr rds re- rea rec red ree ref rei rer res rfa rfc rfd rfe rff rfi rfr rfs ria ric rid rie rif rii rir ris rra rrc rrd rrf rri rrr rrs rsa rsc rsd rse rsf rsi rsr rss saa sac sad sae saf sai sar sas sca scc scd sce scf sci scr scs sda sdc sdd sde sdf sdi sdr sds se- sea sec sed see sef sei ser ses sfa sfc sfd sfe sff sfi sfr sfs sia sic sid sie sif sii sir sis sr- sra src srd sre srf sri srr srs ss- ssa ssc ssd sse ssf ssi ssr sss