x1 x2 x1=0.0 x2=100.0 x1 x2 x1=3.0 x2=-3.0 x1 x2 x1=4.0 x2=1.0 x3=6.0 x4=0.0 x1 x2 x1 x2 x1=0.0 x2=100.0 x1 x2 x1=3.0 x2=-3.0 x1 x2 x1=4.0 x2=1.0 x3=6.0 x4=0.0 x1 x2 x1 x2