bacy[8], caby[8], baca[7], caba[7], arby[7], bary[7], raby[7], ryba[7], arab[6], arba[6], bara[6], raba[6], cary[6], racy[6], cara[5], raca[5],
cab[6], aby[6], bry[6], ryb[6], arb[5], bar[5], rab[5], car[4], rac[4], ary[4], ara[3],
by[5], ba[4], aa[2], ar[2],
