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(2,1) (﹣2,﹣1) (﹣1,2)
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(﹣3,4) (﹣2,﹣6) (﹣6,﹣2) (﹣3,﹣4)
(1,0.5) (2,﹣1) (﹣1,﹣2) (﹣2,1)
(3,4) (-2,-6) (-2,6) (-3,-4)
(1,10) (-1,-10) (2,5) (-2,5)
(-1,8) (-2,4) (1,7) (2,4)
(3,4) (-2,-6) (-2,6) (-3,-4)
)(3,8) ( )(3,-3) ( )(-8,-3) ( )(-4,-6)
(-2,-4) (2,3) (-1,6)
)(3,8) ( )(3,-3) ( )(-8,-3) ( )(-4,-6)
(2,1) (-2,1) (2,-2) (1,2)
(2,4) (-2,-4) (2,3) (2,-3)
(3,4) (4,﹣3 ) (﹣12,﹣1) (2,6)
(2,﹣2) (﹣2,2) (4,﹣1) (﹣1,﹣4)
(1,10) (-1,-10) (2,5) (-2,5)