22.
Refer to the following number and symbol series and answer the question that follows. Counting to be done from left to right only.
(Left) @ 6 8 $ 9 # 1 * £ 4 7 & 2 & % 3 Ω 5 (Right)
How many such numbers are there, each of which is immediately preceded by a number and also immediately followed by a symbol?