baca[7], caba[7], bada[7], bard[7], drab[7], arab[6], arba[6], bara[6], raba[6], cara[5], raca[5], rada[5],
cab[6], bad[6], dba[6], arb[5], bar[5], rab[5], car[4], rac[4], dar[4], rad[4], ara[3],
ba[4], ad[3], da[3], aa[2], ar[2],
