ASCII to and from binary, octal, decimal, and hexadecimal.
If you are doing an ASCII to * level, then note that there are item(s) that have alternates in brackets, such as #, which has hash - this is done so that you can answer them using that name in brackets (as Memrise will not accept the character itself as an answer). Please report any items that won't be taken as a correct answer, and do not have an alternate in brackets, in the forums.
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