The invite code generation function for Sci-Net is defined as:
G (x; t) = x t + d
where x is a random sequence of symbols representing the invite code, t is the amount of knowledge tokens in code, and d is a decimal part connecting x and t.
Exercise 1. Enter a sequence of symbols that will become an invite code, and continue to the next page. The length of the sequence must be within range [8..64]