Refer to the given number, symbol series and answer the question that follows.
(Left) 7 + * 7 # & 8 6 5 % 4 $ 6 # @ 4 7 ! 2 5 (Right)
How many such symbols are there (from left to right) in the above series which are immediately preceded by a symbol and also immediately followed by an even number?
1
4
2
3
3
1
4
2