{{ 1,-1,0.005,0.003}{ 2,1,0.005,0.003}{ 3,2,0.005,0.003}{ 4,3,0.005,0.003}{ 5,4,0.005,0.003}{ 6,5,0.005,0.003}{ 7,6,0.005,0.003}{ 8,7,0.005,0.003}}