1. Convert number to character or string
2. Read the input number
3. If the number equals 1, convert it to the character A
4. If the number equals 2, convert it to the character B
5. If the number equals 3, convert it to the character C
6. If the number equals 4, convert it to the character D
7. If the number equals 5, convert it to the character E
8. If the number equals 6, convert it to the character F
9. If the number equals 7, convert it to the character G
10. If the number equals 8, convert it to the character H
11. If the number equals 9, convert it to the character I
12. If the number equals 10, convert it to the character J
13. If the number equals 11, convert it to the character K
14. If the number equals 12, convert it to the character L
15. If the number equals 13, convert it to the character M
16. If the number equals 14, convert it to the character N
17. If the number equals 15, convert it to the character O
18. If the number equals 16, convert it to the character P
19. If the number equals 17, convert it to the character Q
20. If the number equals 18, convert it to the character R
21. If the number equals 19, convert it to the character S
22. If the number equals 20, convert it to the character T
// Repeat the above steps for all numbers up to 100
23. If the number equals 100, convert it to the character AA
// Return the converted character or string
