If you want to know the outcomes of pressing the inputs in different states, here it is.

Key: State _. Which bits are activated relative to input being pressed = Which state it becomes after pressing input

State 0. Nothing = State 1
State 1. Left Side = State 1
State 2. Right Side = State 6
State 3. Opposite Side = State 11
State 4. Current Side = State 3
State 5. Opposite Side and Current Side = State 12
State 6. Left Side and Right Side = State 6
State 7. Opposite Side, Left Side and Right Side = State 7
State 8. Current Side, Left Side and Right Side = State 5
State 9. Opposite Side, Current Side and Left Side = State 12
State 10. Opposite Side, Current Side and Right Side = State 10
State 11. Opposite Side and Left Side = State 11
State 12. Opposite Side and Right Side = State 7
State 13. Current Side and Left Side = State 3
State 14. Current Side and Right Side = State 5

Dont forget, voting is on the 16/11/13. The winner is the one who gets the most votes.