Don't Be Cheated!Read Carefully!

Sharky wants to unlock his friend Krishna's combination lock. The lock consists of $4$ reels, each reel displays the numbers from 01 to 99. Krishna tells Sharky that the first number from left to right is a multiple of 3, the second is a prime, the third is a multiple of 2 and the last number is divisible by 4. For example,

$|57|97|88|08|$

By following Krishna's clue, let $n$ be the digit sum of the maximum number of possible choices for unlocking Krishna's lock. Find $n$ .

Source from PMWC.