bada[7], bard[7], drab[7], dada[6], arab[6], arba[6], bara[6], raba[6], dard[6], rada[5],
bad[6], dba[6], arb[5], bar[5], rab[5], dar[4], rad[4], aaa[3], ara[3],
ba[4], ad[3], da[3], aa[2], ar[2],
