bacy[8], caby[8], ryby[8], arby[7], bary[7], raby[7], ryba[7], cary[6], racy[6],
cab[6], aby[6], bry[6], ryb[6], arb[5], bar[5], rab[5], car[4], rac[4], ary[4],
by[5], ba[4], ar[2],
