a-a a-b a-c aaa aab aac aad aae aag ab- aba abb abc abd abe abg ac- aca acb acc acd ace acg ad- ada adb adc add ade adg aea aeb aec aed aee aeg ag- aga agb agc agd age agg baa bab bac bad bae bag bba bbb bbc bbd bbe bbg bca bcb bcc bcd bce bcg bda bdb bdc bdd bde bdg be- bea beb bec bed bee beg bga bgb bgc bgd bge bgg c-- caa cab cac cad cae cag cba cbb cbc cbd cbe cbg cca ccb ccc ccd cce ccg cda cdb cdc cdd cde cdg ce- cea ceb cec ced cee ceg cga cgb cgc cgd cge cgg daa dab dac dad dae dag dba dbb dbc dbd dbe dbg dca dcb dcc dcd dce dcg dda ddb ddc ddd dde ddg de- dea deb dec ded dee deg dga dgc dgd dge dgg eaa eab eac ead eae eag eba ebb ebc ebd ebe ebg ec- eca ecb ecc ecd ece ecg ed- eda edb edc edd ede edg eea eeb eec eed eee eeg ega egb egc egd ege egg g-d gaa gab gac gad gae gag gba gbc gbd gbe gbg gca gcb gcc gcd gce gcg gda gdb gdc gdd gde ge- gea geb gec ged gee geg gga ggb ggc ggd ggg