{0}
{0, 3}
{0, 3, 8}
{0, 3, 8, 9}
{0, 3, 8, 9, 7}
{0, 3, 8, 9, 7, 6}
{0, 3, 8, 9, 7, 6, 5}
{0, 3, 8, 9, 7, 6, 5, 4}
{0, 3, 8, 9, 7, 6, 5, 4, 1}
{0, 3, 8, 9, 7, 6, 5, 4, 1, 2}
0 8 10 7 11 18 21 12 15 15