-er a-a aaa aad aae aaj aar ad- ada add ade adj adr aea aed aee aej aer aja ajd aje ajj ajr ar- ara ard are arj arr daa dad dae daj dar dda ddd dde ddr de- dea ded dee dej der dj- dja djd dje dra drd dre drj drr eaa ead eae eaj ear ed- eda edd ede edj edr eea eed eee eer eja ejd era erd ere err j-d jaa jad jae jaj jar jda jde jdr jea jed jee jej jer jja jjj jjr jra jrr ra- raa rad rae raj rar rda rdd rde rdj rdr re- rea red ree rer rja rjr rra rrd rrr