1. A(2, 3), B(1, 5)
2. C(-6, 1), D(2, 1)
3. E(3, 0), F(5, 0)
4. G(-1, -3), H(-2, -5)
5. I(6, 7), J(11, 1)
6. K(5, 3), L(5, -2)
7. M(10, 2), AND(-3, 5)
8. O(6, 2), P(1, 7)
9. Q(5, 8), R(3, 2)
10. S(1, 7), T(3, 8)
11. U(4, 1), V(5, 2)
12. W(3, 2), X(7, 1)
13. Y(0, 5), Z(2, 1)
14. A(6, 5), B(3, 5)
15. C(2, 1), D(7, -1)
