(-6,0)
(5,0)
(8,1)
(-1,2)
(-4,3)
(-6,0)
(2,0)
(6,-1)
(-4,0)
(-1,-3)
(5,1)
(-4,4)
(-3,1)
(3,-4)
(4,0)
(1,-1)
(7,-1)
(-6,-1)
(8,1)
(-4,-1)
(-3,0)
(2,-2)
(0,2)
(-2,4)
(-6,-2)