{{ 1,-1,0.01,0.02}{ 2,1,0.01,0.02}{ 3,2,0.01,0.02}{ 4,3,0.01,0.02}{ 5,4,0.01,0.02}{ 6,5,0.01,0.02}{ 7,6,0.01,0.02}{ 8,7,0.01,0.02}}