Concept:We need digits that are immediately preceded by a symbol and immediately followed by a letter.Explanation:Check every digit in the arrangement.For 4: left is E (letter), so not valid.For 3: left is R (letter), so not valid.For 6: right is # (symbol), so not valid.For 2: left is I (letter), so not valid.For 9: right is & (symbol), so not valid.For 1: left is W (letter), so not valid.For 5: left is P (letter), so not valid.For 8: left is Q (letter), so not valid.No digit satisfies both conditions.Answer:0 numbers.