-er a-a a-q aaa aad aae aaq aar ad- ada add ade adq adr aea aed aee aeq aer aqa aqr ar- ara ard are arq arr daa dad dae daq dar dda ddd dde ddq ddr de- dea ded dee deq der dqa dqe dra drd dre drq drr eaa ead eae ear ed- eda edd ede edr eea eed eee eer eqa eqe eqq era erd ere erq err qaa qad qar qda qdr qed qee qqq qra qre ra- raa rad rae raq rar rda rdd rde rdr re- rea red ree req rer rra rrd rrq rrr