{4,6}\{4,6\} {4,6}
{2,4,6,8}\{2,4,6,8\} {2,4,6,8}
{2,3,5}\{2, 3, 5\}{2,3,5}
{2,3,4,5,6,8}\{2, 3, 4, 5, 6, 8\}{2,3,4,5,6,8}