Xiao Wang is a librarian responsible for shelving 9 books labeled A, B, C, D, E, F, G, H, I on a shelf with positions 1 to 9.

The constraints are:
1. Book H must be to the left of book G.
2. Book F must be placed in position 5.
3. Book F must be to the right of book A.
4. Book H must be to the right of book F.
5. Book H cannot be placed in position 3.
6. Book C must be adjacent to book A.
7. Book F cannot be placed in position 8.
8. Book I must be placed in position 4.
9. Book C cannot be placed in position 8.
10. Book B must be adjacent to book G.
11. Book I cannot be placed in position 3.

Question:
Based on the above conditions, please arrange the 9 books from left to right on the bookshelf, i.e. positions 1 through 9. Return your answer with the format <<< a list of strings >>>, one solution is enough.for example:
<<<["A", "B", "C"]>>>
Your answer:
