29.
Refer to the given number, symbol series and answer the question that follows.
Counting to be done from left to right only.
(Left) 7 5 ^ 5 + % 5 6 $ 2 3 * 6 + 3 & 4 ? $ # 6 1 2 3 & 6 3 % @ (Right)
How many such symbols are there each of which is immediately preceded by a number and immediately followed by another symbol?