I'd love to have my own data constructions to store them somewhere (e.g. to a hash table)
Something like id, x, y, animation frame could be a simple string like "A19EB408"
ACEs:
hex2decimal
returns the decimal expression of the hex-value
decimal2hex
returns the hexadecimal expression of the number
sethex (hex, number, byte position, byte length)
changes hex by converting number and change the specified part of hex ("A31C012B", 255, 3, 1 -> "A31CFF2B")
gethex (hex, byte position, byte length)
returns the decimal expression of the specified part of hex ("A31C012B", 2, 2 -> 7169)
Good luck for the contest :)