a-a a-b aaa aab aae aah aaj aam ab- aba abb abe abh abj abm aea aeb aee aeh aej aem aha ahb ahe ahh ahj ahm aja ajb aje ajh ajj ajm ama amb ame amh amm baa bab bae bah baj bam bba bbb bbe bbh bbm be- bea beb bee beh bem bha bhb bhe bhh bhj bhm bja bjj bjm bma bmb bme bmh bmj bmm eaa eab eae eah eaj eam eba ebb ebe ebh ebj ebm eea eeb eee eem eha ehb ehe ehh ehm eja em- ema emb eme emh emm haa hab hae hah haj ham hba hbb hbe hbh hbj hbm he- hea heb hee heh hej hem hha hhb hhe hhh hhj hhm hja hjm hma hmb hme hmh hmj hmm jaa jab jae jah jaj jam jba jbj jbm jea jeb jee jeh jej jem jha jhe jhj jja jjb jjj jma jmb jme jmj jmm maa mab mae mah maj mam mba mbb mbe mbh mbj mbm mea meb mee meh mej mem mha mhh mhm mjb mje mjj mjm mma mmb mme mmh mmj mmm