Hi! I've been working on this a bit, and here is m‡y POTENTIAL solution, part 1: G: An encapsulating character. Either G(string)G or (string)GG. Either way, G is like STOP. B: Digit. They use a base 6 system. H: An addition/subtraction character. Sample use: 1H27H26 is 1+26=27 or 27-26-1 or 27-1=26 (all are equivalent). Base 6 rationale: 36 spaces after message (17.1/.492=36) Counts to 6 at start. More in Q section. What is I?