a-a a-b a-q aaa aab aad aae aam aaq ab- aba abb abd abe abm abq ad- ada adb add ade adm adq aea aeb aed aee aem aeq ama amb amd ame amm amq aqa aqm baa bab bad bae bam baq bba bbb bbd bbe bbm bbq bda bdb bdd bde bdm bdq be- bea beb bed bee bem beq bma bmb bmd bme bmm bmq bqd bqe daa dab dad dae dam daq dba dbb dbd dbe dbm dbq dda ddb ddd dde ddm ddq de- dea deb ded dee dem deq dma dmb dmd dme dmm dqa dqe eaa eab ead eae eam eba ebb ebd ebe ebm ebq ed- eda edb edd ede edm eea eeb eed eee eem em- ema emb emd eme emm eqa eqe eqq maa mab mad mae mam mba mbb mbd mbe mbm mbq mda mdb mdd mde mdm mdq mea meb med mee mem meq mma mmb mmd mme mmm mqa mqb qaa qad qam qba qbd qbe qbq qda qdb qed qee qem qma qme qqq