8
1.0 0.0
0.7071067811865476 0.7071067811865475
6.123233995736766E-17 1.0
-0.7071067811865475 0.7071067811865476
-1.0 1.2246467991473532E-16
-0.7071067811865477 -0.7071067811865475
-1.8369701987210297E-16 -1.0
0.7071067811865474 -0.7071067811865477
