Study the following arrangement of numbers and symbols and answer the question that follows:

(all numbers are single digit numbers only)

3 7 # 8 5 % 9 2 3 * 1 0 1 % 6 3 ? 9 3 5 ^ 2 7 & 3 5 4 @ 4 1 7

How many such even numbers are there in this arrangement each of which is immediately preceded by a symbol?