1. A
2. B
3. A ADDITION B
4. B ADDITION A
5. A SUBTRACTION B
6. B SUBTRACTION A
7. A REVERSE_SUBTRACTION B
8. B REVERSE_SUBTRACTION A
9. A INTERSECTION B
10. B INTERSECTION A
11. A DIFFERENCE B
12. B DIFFERENCE A
13. A HOLLOW_SUBTRACTION B
14. B HOLLOW_SUBTRACTION A
15. A HOLLOW_INTERSECTION B
16. B HOLLOW_INTERSECTION A