x,y
-0.5,-0.5
-1.0,-1.0
-1.5,-1.5
-2.0,-2.0
-2.5,-2.5
-3.0,-3.0
-3.5,-3.5
-4.0,-4.0
-4.5,-4.5
-5.0,-5.0
-5.5,-5.5
-6.0,-6.0
-6.5,-6.5
-7.0,-7.0
-7.5,-7.5
-8.0,-8.0
-8.5,-8.5
-9.0,-9.0
-9.5,-9.5
-10.0,-10.0