Study the given digit-letter-symbol sequence carefully and answer the question that follows.
(Left)5 Q + S r 8 B @ A 3 ? 6 c < Z % 6 d & G $ 2(Right)
If the given sequence is written in the reverse order, then which element will be 7th to the right of the 10th element from the right end?
1
B
2
8
3
%
4
+