2), (-3; 1), (-5;- 2), (-5;- 6), (-2;- 10),
(2;- 10),(5;- 6), (5;- 2), (3; 1), (5; 2), (7; 4), (7; 5), (5; 7),(-5; 7)
2. (-3; 1), (3; 1)
3. (-6; 6), (-6; 8), (-5; 10), (-3; 12), (3; 12), (5; 10), (6; 8), (6; 6)
4. (-5; 10), (-6; 10), (-7; 11), (-7; 13), (-6; 14), (-4; 14), (-3; 13), (-3; 12)
5. (5; 10), (6; 10), (7; 11), (7; 13), (6; 14), (4; 14); (3; 13), (3; 12)
6. (-5; 10), (-6; 12), (-5; 13), (-4; 12), (-4; 11)
7. (5; 10), (6; 12), (5; 13), (4; 12), (4; 11)
8. (-3; 1), (-4; 1), (-8;- 1), (
-9;- 2), (-9;- 3), (-8;- 4), (-6;- 3), (-5;- 2)
9. (3; 1), (4; 1), (8;- 1), (9;- 2), (9;- 3), (8;- 4), (6;- 3), (5;- 2)
10. (-5;- 6), (-7;- 6), (-9;- 8), (-9;- 10), (-6;- 13), (-4;- 13), (-2;- 11), (-2;- 10)
11. (5;- 6), (7;- 6), (9;- 8), (9;- 10), (6;- 13), (4;- 13), (2;- 11), (2;- 10)
12. (-5;- 7), (-7;- 7), (-8;- 8), (-8;- 10), (-6;- 12), (-4;- 12), (-3;- 10), (-5;- 7)
13. (5;- 7), (7;- 7), (8;- 8), (8;- 10), (6;- 12), (4,- 12), (3;- 10), (5;- 7)
14. (-4; 7), (-4; 9), (-3; 10), (-2; 9), (-2; 7)
15. (4; 7), (4; 9), (3; 10), (2; 9), (2; 7)
16. (-3; 5), (-3; 4), (-2; 4), (-2; 5), (-3; 5)
17. (3; 5), (3; 4), (2; 4), (2; 5), (3; 5)
18. (-3; 3), (0; 2), (3; 3)
19. (-3; 8)
20. (3; 8)