{{
{20,20,10,20},
{10,20,10,20,10},
{20,20},
{10,20,10,20},
{10,20,10,20},
{9,20,9,10,20,10,20,9},
{20,10},
{10,11,10,11,10,11,10,11},
{11,10,11,10,11},
{10,11,10,11},
{10,11},
{20,20,-1,-1},
{-1,20,20,-1}
}}