{{ 1,-1,0.005,0.009}{ 2,1,0.005,0.009}{ 3,2,0.005,0.009}{ 4,3,0.005,0.009}{ 5,4,0.005,0.009}{ 6,5,0.005,0.009}{ 7,6,0.005,0.009}{ 8,7,0.005,0.009}}