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