Xiao Wang is a librarian responsible for shelving 8 books labeled A, B, C, D, E, F, G, H on a shelf with positions 1 to 8.

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

Question:
Based on the above conditions, please arrange the 8 books from left to right on the bookshelf, i.e. positions 1 through 8. Return your answer with the format <<< a list of strings >>>, one solution is enough.for example:
<<<["A", "B", "C"]>>>
Your answer:
