a-a a-b a-t aaa aab aad aaj aat ab- aba abb abd abj abt ad- ada adb add adj adt aja ajb ajd ajj ajt at- ata atb atd att baa bab bad baj bat bba bbb bbd bbt bda bdb bdd bdj bdt bja bjd bjj bjt bta btb btd btt daa dab dad daj dat dba dbb dbd dbt dda ddb ddd ddt dj- dja djb djd djt dta dtb dtd dtj dtt j-d jaa jab jad jaj jat jba jbj jbt jda jdb jdt jja jjb jjj jta jtb jtt taa tab tad taj tat tba tbb tbd tbj tbt tda tdb tdd tdt tjd tta ttb ttd ttt