Calculate the results of each operation. Assume that all numbers are in hexadecimal two's complement representation in an 8-bit container.

For solutions, write "overflow" if overflow occurs, or the hex representation of the solution otherwise (still in an 8-bit container)

1. 4D+F6

2.C0+BE

3. 50+36

4. 1A+E2

5. F6+0F

6. 88+13

7. D6+10

8. F9-05

9. FA-8F

10. 99-94

11. 01-86

12.90-22

13. C1-41

14. 5C-CB

15. DD-BC