Clues: The only instructions given to solve this is that the answer can be alpha-numeric text.
Ideas: So far I have this:
- SQUARE: 101111
- DIAMOND: 2111112
- RECTANGLE: 111211021
- HEXAGON: ?1?1011
Though I can't see a recurring pattern to extrapolate what H and X would be, or if there's an entirely different logic mechanism in this puzzle.