-er a-a a-c aaa aac aad aae aaf aah aao aar ac- aca acc acd ace acf ach aco acr ad- ada adc add ade adf adh ado adr aea aec aed aee aef aeh aeo aer af- afa afc afd afe aff afh afo afr aha ahc ahd ahe ahf ahh aho ahr aoa aoc aod aoe aof aoh aoo aor ar- ara arc ard are arf arh aro arr c-- caa cac cad cae caf cah cao car cca ccc ccd cce ccf cch cco ccr cda cdc cdd cde cdf cdh cdo cdr ce- cea cec ced cee cef ceh ceo cer cfa cfc cfd cfe cff cfh cfo cfr ch- cha chc chd che chf chh cho chr co- coa coc cod coe cof coh coo cor cra crc crd cre crf crh cro crr daa dac dad dae daf dah dao dar dca dcc dcd dce dcf dco dcr dda ddc ddd dde ddf ddh ddo ddr de- dea dec ded dee def deh deo der dfa dfc dfd dfe dff dfh dfo dfr dh- dha dhc dhd dhe dhf dhh dho dhr doa doc dod doe dof doh doo dor dra drc drd dre dro drr eaa eac ead eae eaf eah eao ear ec- eca ecc ecd ece ecf ech eco ecr ed- eda edc edd ede edf edh edo edr eea eec eed eee eef eeo eer ef- efa efc efd efe eff efh efo efr eha ehc ehd ehe ehf ehh eho ehr eo- eoa eoc eod eoe eof eoh eoo eor era erc erd ere erf erh ero err faa fac fad fae faf fah fao far fca fcc fcd fce fcf fco fcr fda fdc fdd fde fdf fdh fdo fdr fea fec fed fee fef feh feo fer ffa ffc ffd ffe fff ffh ffo ffr fha fhc fhe fhf fhh fho fhr foa foc foe fof foh foo for fra frc frd fre frf frh fro frr haa hac had hae haf hah hao har hca hcc hcd hce hcf hch hco hcr hda hdc hdd hde hdf hdh hdo hdr he- hea hec hed hee hef heh heo her hfa hfc hfd hfe hff hfh hfo hfr hha hhc hhd hhe hhf hhh hho hhr hoa hoc hod hoe hof hoh hoo hor hr- hra hrc hrd hre hrf hrh hro hrr oaa oac oad oae oaf oah oao oar oc- oca occ ocd ocf och oco ocr oda odc odd ode odf odh odo odr oea oec oed oee oef oeh oeo oer of- ofa ofc ofd ofe off ofo ofr oha ohc ohd ohe ohf ohh oho ohr oo- ooa ooc ood oof ooh ooo oor or- ora orc ord ore orf orh oro orr ra- raa rac rad rae raf rah rao rar rca rcc rcd rce rcf rch rco rcr rda rdc rdd rde rdf rdh rdo rdr re- rea rec red ree ref reh reo rer rfa rfc rfd rfe rff rfh rfo rfr rh- rha rhc rhd rhe rhf rhh rho rhr roa roc rod roe rof roh roo ror rra rrc rrd rrf rrh rrr