a-a a-b aaa aab aae aag aaj ab- aba abb abe abg abj aea aeb aee aeg aej ag- aga agb age agg agj aja ajb aje ajj baa bab bae bag baj bba bbb bbe bbg be- bea beb bee beg bga bgb bge bgg bja bjg bjj eaa eab eae eag eaj eba ebb ebe ebg ebj eea eeb eee eeg ega egb ege egg eja gaa gab gae gag gaj gba gbe gbg gbj ge- gea geb gee geg gga ggb ggg ggj gja gje gjg jaa jab jae jag jaj jba jbg jbj jea jeb jee jeg jej jga jgb jge jja jjb jjg jjj