{{
{2,20},
{2,20},
{2,20,2,20},
{2,20,2,20},
{2,20,2,20},
{2,20},
{2,20},
{2,20},
{2,20,2,20},
{20,2,20,2,20,2,2,20,2,20,2,20,2}
}}