(6.-9)
(5,-9)
(3,9)
(-2,5)
(3.6)
(8,1)
(4,3)
(5,7)
(4,4)
1,5
6,5
(9.0)
(2,-6)
(10,0)
(-9,-1)
(-3,5)
(3,-3)
(7,-4)
(-2-7)
(-2,-9)
(-2,-7)
(0,8)
