Refer to the given number, symbol series and answer the following question.
( left) 9 + $ 5 @ $ 2 6 3 % 2 & 8 # * 2 9 ! 4 3 (right)
How many signs are there (from left to right) that are immediately preceded by a sign and immediately followed by an even number?
1
4
2
1
3
3
4
2