{0,1,2,4,7,8,9}
{0,2}
{1,8}
{4,7,9}
{3,4,5,6,7,9}
{1,3,5,6,8}
{0,1,2,3,5,6,8}
{2,4,7}
{1,2,3,4,5,6,8,9}
{7}