Study the following alphanumeric series carefully and answer the question given below: Series: T @ 3 9 S 9 J L E U * K # 3 I O 9 $ 4 Y Q % T @ 3 9 S I...

Study the following alphanumeric series carefully and answer the question given below:

Series:

T @ 3 9 S 9 J L E U * K # 3 I O 9 $ 4 Y Q % T @ 3 9 S I O 9 9 J L E U * K # 3 7 A 6 P & R

Steps:

• STEP I: The letters which are immediately preceded and immediately followed by a symbol are arranged at the end of the series in alphabetical order.
• STEP II: The symbols which are immediately preceded by a symbol and immediately followed by a number are arranged between & and R in the same order.
• STEP III: The numbers which are immediately followed by a letter are interchanged in position with respect to the element just after it.

(STEP II is applied after STEP I and STEP III is applied after STEP II)

Question: How many letters are arranged at the end of the series in STEP I?