-er a-a aaa aad aae aao aar ad- ada add ade ado adr aea aed aee aeo aer aoa aod aoe aoo aor ar- ara ard are aro arr daa dad dae dao dar dda ddd dde ddo ddr de- dea ded dee deo der doa dod doe doo dor dra drd dre dro drr eaa ead eae eao ear ed- eda edd ede edo edr eea eed eee eeo eer eo- eoa eod eoe eoo eor era erd ere ero err oaa oad oae oao oar oda odd ode odo odr oea oed oee oeo oer oo- ooa ood ooo oor or- ora ord ore oro orr ra- raa rad rae rao rar rda rdd rde rdo rdr re- rea red ree reo rer roa rod roe roo ror rra rrd rrr