HOW MANY SUCH SYMBOLS ARE THERE IN THE FOLLOWING SERIES, WHICH ARE...

10. How many such symbols are there in the following series, which are immediately preceded by an even number and immediately followed by an odd number? 3 8 9 4 $ 5 9÷8 4 * 3 5 6 $ 5 8 7 % 9 4 3 # 7 6 2? 3 4 6