{{ 1,-1,0.08,0.08}{ 2,1,0.08,0.08}{ 3,2,0.08,0.08}{ 4,3,0.08,0.08}{ 5,4,0.08,0.08}{ 6,5,0.08,0.08}{ 7,6,0.08,0.08}{ 8,7,0.08,0.08}}